Daily Archives: October 27, 2016

NATO bolsters presence in Europe

Posted: October 27, 2016 at 11:58 am

In the largest buildup of troops in the region since the Cold War, the UK has said it will send Royal Air Force Typhoon jets to Romania for up to four months in 2017.

Defense Secretary Michael Fallon also confirmed that 800 personnel will be moved to Estonia, 150 more than originally planned.

"Backed by a rising defense budget, this deployment of air, land and sea forces shows that we will continue to play a leading role in NATO, supporting the defense and security of our allies from the north to the south of the alliance," Fallon said.

On Wednesday, Russia withdrew a request for a flotilla of warships, including its flagship aircraft carrier the Admiral Kuznetsov, to refuel in the Spanish port of Ceuta as the ships head toward Syria.

In a statement, Spain's foreign affairs ministry said Russia withdrew the request after the ministry had asked the Russian Embassy in Madrid to clarify reports the flotilla might participate in military operations against the besieged Syrian city of Aleppo.

The Russian role in the Syrian conflict has exacerbated tensions between Moscow and NATO that have risen since Russia's annexation of the Crimea region from Ukraine in 2014.

On Wednesday, NATO Secretary General Jens Stoltenberg said that recent tactics by Moscow had forced the alliance to respond.

"Russia has tripled defense spending," Stoltenberg told reporters.

"Russia has invested heavily in a modern military equipment. They are conducting a large-scale, no-notice exercises close to NATO borders, but perhaps most importantly Russia has been willing to use military force against neighbors.

"We have seen that in Georgia and we have seen it in Ukraine with illegal annexation of Crimea and the continued destabilization of eastern Ukraine. So therefore NATO has to respond. "

NATO defense ministers met Wednesday in Brussels, Belgium, to discuss the situation as well as the fight against ISIS.

The latest troop deployment comes at a time of fear over the security of Baltic states such as Latvia, Estonia and Lithuania, which have significant Russian-speaking minorities like Ukraine and concerns that they could suffer a similar fate to Crimea's.

Poland has already registered unease over Russia's move to bolster military options in its Baltic enclave of Kaliningrad, including the arrival of the Iskander missile system.

Poland's paramilitary defense has grown rapidly, with more than 35,000 people signing up and undergoing military training. They range from high school students to lawyers and doctors.

The United States and the UK are both set to send troops to Poland next year in a show of strength and support of their NATO ally.

"NATO does not seek confrontation with Russia," Stoltenberg said.

"We don't want a new Cold War, and we don't want a new arms race and therefore, what NATO does is defensive and it is proportionate.

"At the same time, NATO has to react when we, over a long period of time, have seen a substantial military buildup by Russia and we have seen them modernize their military capabilities and most importantly, we have seen them willing to use military force against neighbors."

In July, the UK said it would deliver one of four battalions to NATO's enhanced forward presence in the Baltic states and Poland.

According to the Ministry of Defense, the deployment is likely to include "armored Infantry, equipped with Warrior armored fighting vehicles, tactical UAVs (unmanned aerial vehicles), and a troop of our Challenger 2 main battle tanks."

UK troops are expected to begin their deployment in Estonia in May.

NATO has also said that Albania, Italy, Poland and Slovenia will contribute to a Canadian-led battalion in Latvia.

Belgium, Croatia, France, Luxembourg, the Netherlands and Norway will join a German-led battalion in Lithuania, while Denmark and France will contribute to the UK-led battalion in Estonia.

Romania and the UK will join the US-led battalion in Poland.

The initiative will include putting equipment in place in the Baltic states, Poland and Central Europe.

On Monday, Norway announced that US Marines would be deployed in the country, beginning in January.

Norway shares a 196-kilometer (122-mile) border with Russia.

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Jitsi – Wikipedia

Posted: at 11:58 am

Jitsi Original author(s) Emil Ivov Developer(s) Jitsi Team and Contributors Initial release 2003(2003) Stable release 2.8 (build.5426) (March19, 2015; 18 months ago(2015-03-19)) [] Preview release 2.9 (nightly) [] Development status Active Written in Java Operating system Linux, Mac OS X, Windows (all Java supported) Size 52.4 MB Windows (bundles its own private JRE)[1] 78.8MB Mac OS X (includes private JRE)[2] 22MB Linux 65MB source code[3] Available in Asturian, English, French, German, Bulgarian, Japanese, Spanish, Italian, Romanian, Greek and 25 more Type Voice over Internet Protocol / instant messaging / videoconferencing License Apache 2.0[4] Website jitsi.org

Jitsi (formerly SIP Communicator) is a free and open source multiplatform[5]voice (VoIP), videoconferencing and instant messaging application for Windows, Linux, Mac OS X and Android. It supports several popular instant-messaging and telephony protocols, including open recognised encryption protocols for chat (OTR) and voice/video/streaming and voice/video conferencing (SIP/RTP/SRTP/ZRTP), as well as built-in IPv6, NAT traversal and DNSSEC. Jitsi and its source code are released under the terms of the Apache Software Licence.[6]

Work on Jitsi (then SIP Communicator) started in 2003 in the context of a student project by Emil Ivov at the University of Strasbourg.[7] It was originally released as an example video phone in the JAIN-SIP stack and later spun off as a standalone project.[8]

Originally the project was mostly used as an experimentation tool because of its support for IPv6.[9][10] Through the years, as the project gathered members, it also added support for protocols other than SIP.

Jitsi has received support from various institutions such as the NLnet Foundation,[11][12] the University of Strasbourg and the Region of Alsace[13] and it has also had multiple participations in the Google Summer of Code program.[14][15]

In 2009, Emil Ivov founded the BlueJimp company which has employed some of Jitsi's main contributors[16][17] in order to offer professional support and development services[18] related to the project.

In 2011, after successfully adding support for audio/video communication over XMPPs Jingle extensions, the project was renamed to Jitsi since it was no longer "a SIP only Communicator".[19][20] This name originates from the Bulgarian "" (wires).[21]

On November 4, 2014, "Jitsi + Ostel" scored 6 out of 7 points on the Electronic Frontier Foundation's secure messaging scorecard. They lost a point because there has not been a recent independent code audit.[22]

On February 1, 2015, Hristo Terezov, Ingo Bauersachs and the rest of the team released[23] version 2.6 from their stand at the Free and Open Source Software Developers' European Meeting 2015 event in Brussels. This release includes security fixes, removes support of the deprecated MSN protocol, along with SSLv3 in XMPP. Among other notable improvements, the OS X version bundles a Java 8 runtime, enables echo cancelling by default, and uses the CoreAudio subsystem. The Linux build addresses font issues with the GTK+ native LookAndFeel, and fixes some long standing issues about microphone level on call setup when using the PulseAudio sound system. This release also adds the embedded Java database Hyper SQL Database to improve performance for users with huge configuration files, a feature which is disabled by default. A full list of changes is[24] available on the project web site.

Jitsi supports multiple operating systems, including Windows as well as Unix-like systems such as Linux, Mac OS X and BSD. "Beta" packages built for Android are available[25] but the project's roadmap describes the porting to Android as "on hold".[26] It also includes:[27]

The following protocols are currently supported by Jitsi:[5]

Jitsi is mostly written in Java[32] which helps reuse most of the same code over the various operating systems it works on. Its GUI is based upon Swing. The project also uses native code for the implementation of platform specific tasks such as audio/video capture and rendering, IP address selection, and access to native popup notification systems such as Growl.

The project uses the Apache Felix OSGi implementation[33] for modularity.

Among others Jitsi uses the JAIN-SIP protocol stack for SIP support and the Jive Software Smack library[34] for XMPP.[35]

As Jitsi can handle IPv6 it is especially interesting for direct PC-to-PC (peer-to-peer) communication, for instance, if both sides were 'trapped' behind NAT routers, but could obtain a reachable IPv6 address via a tunnel-broker.[citation needed]

The Jitsi community has also completed an ICE implementation called ice4j.org, which it uses to provide NAT traversal capabilities, and assist IPv4 to IPv6 transition.[36]

Audio systems supported are PortAudio, PulseAudio and WASAPI (Windows Audio Session API).

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Elon Musk shares new details on plan to colonize Mars …

Posted: at 11:57 am

Elon Musk addresses the International Astronautical Congress, Sept. 27, 2016.

SpaceX

SpaceX CEO Elon Musk has given more details about his plan to colonize Mars.

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Space entrepreneur and Tesla founder Elon Musk unveiled a plan this week for putting a permanent human colony on the red planet. Musk estimates i...

Musk answered what he called great questions in a RedditAsk Me Anything session on Sunday. Many of the questions were highly technical, coming from SpaceX fans who have been following Musks public plans for colonization since the beginning.

The session was a follow up to Musks comments at a space conference in Mexico last month during which he unveiled his plan to send up to one million people to Mars over the next 100 years.

In that speech, Musk said that his companys rocket, spacecraft and economies of scale would bring the cost of Mars travel down to $200,000 per ticket compared to $10 billion per ticket, the estimate in todays dollars for sending an astronaut using the Apollo moon mission architecture.

Musk envisions 1,000 passenger ships flying en masse to the red planet, Battlestar Galactica style.

He elaborated on that plan Sunday, explaining that first an unmanned ship will be sent to Mars with equipment to build a plant to create refueling propellant for return trips to Earth. He says the first manned mission would have the job of constructing the plant.

The initial crew would comprise about a dozen people. After that, Musk wrote, he hopes to double the number of flights with each Earth-Mars orbital rendezvous, which is every 26 months, until the city can grow by itself.

Musk said last month SpaceX is already working on equipment for the project.

2016 CBS Interactive Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.

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Longevity – Wikipedia

Posted: at 11:56 am

The word "longevity" is sometimes used as a synonym for "life expectancy" in demography - however, the term "longevity" is sometimes meant to refer only to especially long-lived members of a population, whereas "life expectancy" is always defined statistically as the average number of years remaining at a given age. For example, a population's life expectancy at birth is the same as the average age at death for all people born in the same year (in the case of cohorts). Longevity is best thought of as a term for general audiences meaning 'typical length of life' and specific statistical definitions should be clarified when necessary.

Reflections on longevity have usually gone beyond acknowledging the brevity of human life and have included thinking about methods to extend life. Longevity has been a topic not only for the scientific community but also for writers of travel, science fiction, and utopian novels.

There are many difficulties in authenticating the longest human life span ever by modern verification standards, owing to inaccurate or incomplete birth statistics. Fiction, legend, and folklore have proposed or claimed life spans in the past or future vastly longer than those verified by modern standards, and longevity narratives and unverified longevity claims frequently speak of their existence in the present.

A life annuity is a form of longevity insurance.

Various factors contribute to an individual's longevity. Significant factors in life expectancy include gender, genetics, access to health care, hygiene, diet and nutrition, exercise, lifestyle, and crime rates. Below is a list of life expectancies in different types of countries:[3]

Population longevities are increasing as life expectancies around the world grow:[1][4]

The Gerontology Research Group validates current longevity records by modern standards, and maintains a list of supercentenarians; many other unvalidated longevity claims exist. Record-holding individuals include:[citation needed]

Evidence-based studies indicate that longevity is based on two major factors, genetics and lifestyle choices.[5]

Twin studies have estimated that approximately 20-30% the variation in human lifespan can be related to genetics, with the rest due to individual behaviors and environmental factors which can be modified.[6] Although over 200 gene variants have been associated with longevity according to a US-Belgian-UK research database of human genetic variants,[7] these explain only a small fraction of the heritability.[8] A 2012 study found that even modest amounts of leisure time physical exercise can extend life expectancy by as much as 4.5 years.[9]

Lymphoblastoid cell lines established from blood samples of centenarians have significantly higher activity of the DNA repair protein PARP (Poly ADP ribose polymerase) than cell lines from younger (20 to 70 year old) individuals.[10] The lymphocytic cells of centenarians have characteristics typical of cells from young people, both in their capability of priming the mechanism of repair after H2O2 sublethal oxidative DNA damage and in their PARP gene expression.[11] These findings suggest that elevated PARP gene expression contributes to the longevity of centenarians, consistent with the DNA damage theory of aging.[12]

A study of the regions of the world known as blue zones, where people commonly live active lives past 100 years of age, speculated that longevity is related to a healthy social and family life, not smoking, eating a plant-based diet, frequent consumption of legumes and nuts, and engaging in regular physical activity.[13] In a cohort study, the combination of a plant based diet, normal BMI, and not smoking accounted for differences up to 15 years in life expectancy.[14] Korean court records going back to 1392 indicate that the average lifespan of eunuchs was 70.0 1.76 years, which was 14.419.1 years longer than the lifespan of non-castrated men of similar socio-economic status.[15] The Alameda County Study hypothesized three additional lifestyle characteristics that promote longevity: limiting alcohol consumption, sleeping 7 to 8 hours per night, and not snacking (eating between meals), although the study found the association between these characteristics and mortality is "weak at best".[16] There are however many other possible factors potentially affecting longevity, including the impact of high peer competition, which is typically experienced in large cities.[17]

In preindustrial times, deaths at young and middle age were more common than they are today. This is not due to genetics, but because of environmental factors such as disease, accidents, and malnutrition, especially since the former were not generally treatable with pre-20th century medicine. Deaths from childbirth were common in women, and many children did not live past infancy. In addition, most people who did attain old age were likely to die quickly from the above-mentioned untreatable health problems. Despite this, we do find many examples of pre-20th century individuals attaining lifespans of 75 years or greater, including Benjamin Franklin, Thomas Jefferson, John Adams, Cato the Elder, Thomas Hobbes, Eric of Pomerania, Christopher Polhem, and Michelangelo. This was also true for poorer people like peasants or laborers. Genealogists will almost certainly find ancestors living to their 70s, 80s and even 90s several hundred years ago.

For example, an 1871 census in the UK (the first of its kind, but personal data from other censuses dates back to 1841 and numerical data back to 1801) found the average male life expectancy as being 44, but if infant mortality is subtracted, males who lived to adulthood averaged 75 years. The present male life expectancy in the UK is 77 years for males and 81 for females, while the United States averages 74 for males and 80 for females.

Studies have shown that black American males have the shortest lifespans of any group of people in the US, averaging only 69 years (Asian-American females average the longest).[18] This reflects overall poorer health and greater prevalence of heart disease, obesity, diabetes, and cancer among black American men.

Women normally outlive men, and this was as true in pre-industrial times as today. Theories for this include smaller bodies (and thus less stress on the heart), a stronger immune system (since testosterone acts as an immunosuppressant), and less tendency to engage in physically dangerous activities.

There is a current debate as to whether or not the pursuit of longevity is a worthwhile health care goal for the United States. Bioethicist Ezekiel Emanuel, who is also one of the architects of ObamaCare, has stated that the pursuit of longevity via the compression of morbidity explanation is a "fantasy" and that life is not worth living after age 75; therefore longevity should not be a goal of health care policy.[19] This has been refuted by neurosurgeon Miguel Faria, who states that life can be worthwhile in healthy old age; that the compression of morbidity is a real phenomenon; that longevity should be pursued in association with quality of life.[20] Faria has discussed how longevity in association with leading healthy lifestyles can lead to the postponement of senescence as well as happiness and wisdom in old age.[21]

All of the biological organisms have a limited longevity, and different species of animals and plants have different potentials of longevity. Misrepair-accumulation aging theory [22][23] suggests that the potential of longevity of an organism is related to its structural complexity.[24] Limited longevity is due to the limited structural complexity of the organism. If a species of organisms has too high structural complexity, most of its individuals would die before the reproduction age, and the species could not survive. This theory suggests that limited structural complexity and limited longevity are essential for the survival of a species.

Longevity traditions are traditions about long-lived people (generally supercentenarians), and practices that have been believed to confer longevity.[25][26] A comparison and contrast of "longevity in antiquity" (such as the Sumerian King List, the genealogies of Genesis, and the Persian Shahnameh) with "longevity in historical times" (common-era cases through twentieth-century news reports) is elaborated in detail in Lucian Boia's 2004 book Forever Young: A Cultural History of Longevity from Antiquity to the Present and other sources.[27]

The Fountain of Youth reputedly restores the youth of anyone who drinks of its waters. The New Testament, following older Jewish tradition, attributes healing to the Pool of Bethesda when the waters are "stirred" by an angel.[28] After the death of Juan Ponce de Len, Gonzalo Fernndez de Oviedo y Valds wrote in Historia General y Natural de las Indias (1535) that Ponce de Len was looking for the waters of Bimini to cure his aging.[29] Traditions that have been believed to confer greater human longevity also include alchemy,[30] such as that attributed to Nicolas Flamel. In the modern era, the Okinawa diet has some reputation of linkage to exceptionally high ages.[31]

More recent longevity claims are subcategorized by many editions of Guinness World Records into four groups: "In late life, very old people often tend to advance their ages at the rate of about 17 years per decade .... Several celebrated super-centenarians (over 110 years) are believed to have been double lives (father and son, relations with the same names or successive bearers of a title) .... A number of instances have been commercially sponsored, while a fourth category of recent claims are those made for political ends ...."[32] The estimate of 17 years per decade was corroborated by the 1901 and 1911 British censuses.[32] Mazess and Forman also discovered in 1978 that inhabitants of Vilcabamba, Ecuador, claimed excessive longevity by using their fathers' and grandfathers' baptismal entries.[32][33]Time magazine considered that, by the Soviet Union, longevity had been elevated to a state-supported "Methuselah cult".[34]Robert Ripley regularly reported supercentenarian claims in Ripley's Believe It or Not!, usually citing his own reputation as a fact-checker to claim reliability.[35]

The U.S. Census Bureau view on the future of longevity is that life expectancy in the United States will be in the mid-80s by 2050 (up from 77.85 in 2006) and will top out eventually in the low 90s, barring major scientific advances that can change the rate of human aging itself, as opposed to merely treating the effects of aging as is done today. The Census Bureau also predicted that the United States would have 5.3 million people aged over 100 in 2100. The United Nations has also made projections far out into the future, up to 2300, at which point it projects that life expectancies in most developed countries will be between 100 and 106 years and still rising, though more and more slowly than before. These projections also suggest that life expectancies in poor countries will still be less than those in rich countries in 2300, in some cases by as much as 20 years. The UN itself mentioned that gaps in life expectancy so far in the future may well not exist, especially since the exchange of technology between rich and poor countries and the industrialization and development of poor countries may cause their life expectancies to converge fully with those of rich countries long before that point, similarly to the way life expectancies between rich and poor countries have already been converging over the last 60 years as better medicine, technology, and living conditions became accessible to many people in poor countries. The UN has warned that these projections are uncertain, and cautions that any change or advancement in medical technology could invalidate such projections.[36]

Recent increases in the rates of lifestyle diseases, such as obesity, diabetes, hypertension, and heart disease, may eventually slow or reverse this trend toward increasing life expectancy in the developed world, but have not yet done so. The average age of the US population is getting higher[37] and these diseases show up in older people.[38]

Jennifer Couzin-Frankel examined how much mortality from various causes would have to drop in order to boost life expectancy and concluded that most of the past increases in life expectancy occurred because of improved survival rates for young people. She states that it seems unlikely that life expectancy at birth will ever exceed 85 years.[39]Michio Kaku argues that genetic engineering, nanotechnology and future breakthroughs will accelerate the rate of life expectancy increase indefinitely.[40] Already genetic engineering has allowed the life expectancy of certain primates to be doubled, and for human skin cells in labs to divide and live indefinitely without becoming cancerous.[41]

However, since 1840, record life expectancy has risen linearly for men and women, albeit more slowly for men. For women the increase has been almost three months per year, for men almost 2.7 months per year. In light of steady increase, without any sign of limitation, the suggestion that life expectancy will top out must be treated with caution. Scientists Oeppen and Vaupel observe that experts who assert that "life expectancy is approaching a ceiling ... have repeatedly been proven wrong." It is thought that life expectancy for women has increased more dramatically owing to the considerable advances in medicine related to childbirth.[42]

Mice have been genetically engineered to live twice as long as ordinary mice. Drugs such as deprenyl are a part of the prescribing pharmacopia of veterinarians specifically to increase mammal lifespan. A large plurality of research chemicals have been described at the scientific literature that increase the lifespan of a number of species.

Some argue that molecular nanotechnology will greatly extend human life spans. If the rate of increase of life span can be raised with these technologies to a level of twelve months increase per year, this is defined as effective biological immortality and is the goal of radical life extension.

Currently living:

Non-living:

Certain exotic organisms do not seem to be subject to aging and can live indefinitely. Examples include Tardigrades and Hydras. That is not to say that these organisms cannot die, merely that they only die as a result of disease or injury rather than age-related deterioration (and that they are not subject to the Hayflick limit).

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Censorship – Wikipedia

Posted: at 11:55 am

Censorship is the suppression of free speech, public communication or other information which may be considered objectionable, harmful, sensitive, politically incorrect or inconvenient as determined by governments, media outlets, authorities or other groups or institutions.[1]

Governments, private organizations and individuals may engage in censorship. When an individual such as an author or other creator engages in censorship of their own works or speech, it is referred to as self-censorship. Censorship could be direct or indirect, in which case it is referred to as soft censorship. It occurs in a variety of different media, including speech, books, music, films, and other arts, the press, radio, television, and the Internet for a variety of claimed reasons including national security, to control obscenity, child pornography, and hate speech, to protect children or other vulnerable groups, to promote or restrict political or religious views, and to prevent slander and libel.

Direct censorship may or may not be legal, depending on the type, location, and content. Many countries provide strong protections against censorship by law, but none of these protections are absolute and frequently a claim of necessity to balance conflicting rights is made, in order to determine what could and could not be censored. There are no laws against self-censorship.

In 399 BC, Greek philosopher, Socrates, defied attempts by the Greek state to censor his philosophical teachings and was sentenced to death by drinking a poison, hemlock. Socrates' student, Plato, is said to have advocated censorship in his essay on The Republic, which opposed the existence of democracy. In contrast to Plato, Greek playwright Euripides (480406BC) defended the true liberty of freeborn men, including the right to speak freely. In 1766, Sweden became the first country to abolish censorship by law.[3]

The rationale for censorship is different for various types of information censored:

Strict censorship existed in the Eastern Bloc.[10] Throughout the bloc, the various ministries of culture held a tight rein on their writers.[11] Cultural products there reflected the propaganda needs of the state.[11] Party-approved censors exercised strict control in the early years.[12] In the Stalinist period, even the weather forecasts were changed if they had the temerity to suggest that the sun might not shine on May Day.[12] Under Nicolae Ceauescu in Romania, weather reports were doctored so that the temperatures were not seen to rise above or fall below the levels which dictated that work must stop.[12]

Independent journalism did not exist in the Soviet Union until Mikhail Gorbachev became its leader; all reporting was directed by the Communist Party or related organizations. Pravda, the predominant newspaper in the Soviet Union, had a monopoly. Foreign newspapers were available only if they were published by Communist Parties sympathetic to the Soviet Union.

Possession and use of copying machines was tightly controlled in order to hinder production and distribution of samizdat, illegal self-published books and magazines. Possession of even a single samizdat manuscript such as a book by Andrei Sinyavsky was a serious crime which might involve a visit from the KGB. Another outlet for works which did not find favor with the authorities was publishing abroad.

The People's Republic of China employs sophisticated censorship mechanisms, referred to as the Golden Shield Project, to monitor the internet. Popular search engines such as Baidu also remove politically sensitive search results.[13][14][15]

Iraq under Baathist Saddam Hussein had much the same techniques of press censorship as did Romania under Nicolae Ceauescu but with greater potential violence.[citation needed]

Cuban media is operated under the supervision of the Communist Party's Department of Revolutionary Orientation, which "develops and coordinates propaganda strategies".[16] Connection to the Internet is restricted and censored.[17]

Censorship also takes place in capitalist nations, such as Uruguay. In 1973, a military coup took power in Uruguay, and the State practiced censorship. For example, writer Eduardo Galeano was imprisoned and later was forced to flee. His book Open Veins of Latin America was banned by the right-wing military government, not only in Uruguay, but also in Chile and Argentina.[18]

In the United States, censorship occurs through books, film festivals, politics, and public schools.[19] See banned books for more information. Additionally, critics of campaign finance reform in the United States say this reform imposes widespread restrictions on political speech.[20][21]

In the Republic of Singapore, Section 33 of the Films Act originally banned the making, distribution and exhibition of "party political films", at pain of a fine not exceeding $100,000 or to imprisonment for a term not exceeding 2 years. The Act further defines a "party political film" as any film or video

In 2001, the short documentary called A Vision of Persistence on opposition politician J. B. Jeyaretnam was also banned for being a "party political film". The makers of the documentary, all lecturers at the Ngee Ann Polytechnic, later submitted written apologies and withdrew the documentary from being screened at the 2001 Singapore International Film Festival in April, having been told they could be charged in court. Another short documentary called Singapore Rebel by Martyn See, which documented Singapore Democratic Party leader Dr Chee Soon Juan's acts of civil disobedience, was banned from the 2005 Singapore International Film Festival on the same grounds and See is being investigated for possible violations of the Films Act.

This law, however, is often disregarded when such political films are made supporting the ruling People's Action Party (PAP). Channel NewsAsia's five-part documentary series on Singapore's PAP ministers in 2005, for example, was not considered a party political film.

Exceptions are also made when political films are made concerning political parties of other nations. Films such as Michael Moore's Fahrenheit 911 are thus allowed to screen regardless of the law.

Since March 2009, the Films Act has been amended to allow party political films as long as they were deemed factual and objective by a consultative committee. Some months later, this committee lifted the ban on Singapore Rebel.

In wartime, explicit censorship is carried out with the intent of preventing the release of information that might be useful to an enemy. Typically it involves keeping times or locations secret, or delaying the release of information (e.g., an operational objective) until it is of no possible use to enemy forces. The moral issues here are often seen as somewhat different, as the proponents of this form of censorship argues that release of tactical information usually presents a greater risk of casualties among one's own forces and could possibly lead to loss of the overall conflict.

During World War I letters written by British soldiers would have to go through censorship. This consisted of officers going through letters with a black marker and crossing out anything which might compromise operational secrecy before the letter was sent. The World War II catchphrase "Loose lips sink ships" was used as a common justification to exercise official wartime censorship and encourage individual restraint when sharing potentially sensitive information.

An example of "sanitization" policies comes from the USSR under Joseph Stalin, where publicly used photographs were often altered to remove people whom Stalin had condemned to execution. Though past photographs may have been remembered or kept, this deliberate and systematic alteration to all of history in the public mind is seen as one of the central themes of Stalinism and totalitarianism.

Censorship is occasionally carried out to aid authorities or to protect an individual, as with some kidnappings when attention and media coverage of the victim can sometimes be seen as unhelpful.[22][23]

Censorship by religion is a form of censorship where freedom of expression is controlled or limited using religious authority or on the basis of the teachings of the religion. This form of censorship has a long history and is practiced in many societies and by many religions. Examples include the Galileo affair, Edict of Compigne, the Index Librorum Prohibitorum (list of prohibited books) and the condemnation of Salman Rushdie's novel The Satanic Verses by Iranian leader Ayatollah Ruhollah Khomeini. Images of the Islamic figure Muhammad are also regularly censored.

The content of school textbooks is often the issue of debate, since their target audience is young people, and the term "whitewashing" is the one commonly used to refer to removal of critical or conflicting events. The reporting of military atrocities in history is extremely controversial, as in the case of The Holocaust (or Holocaust denial), Bombing of Dresden, the Nanking Massacre as found with Japanese history textbook controversies, the Armenian Genocide, the Tiananmen Square protests of 1989, and the Winter Soldier Investigation of the Vietnam War.

In the context of secondary school education, the way facts and history are presented greatly influences the interpretation of contemporary thought, opinion and socialization. One argument for censoring the type of information disseminated is based on the inappropriate quality of such material for the young. The use of the "inappropriate" distinction is in itself controversial, as it changed heavily. A Ballantine Books version of the book Fahrenheit 451 which is the version used by most school classes[24] contained approximately 75 separate edits, omissions, and changes from the original Bradbury manuscript.

In February 2006 a National Geographic cover was censored by the Nashravaran Journalistic Institute. The offending cover was about the subject of love and a picture of an embracing couple was hidden beneath a white sticker.[25][25]

Copy approval is the right to read and amend an article, usually an interview, before publication. Many publications refuse to give copy approval but it is increasingly becoming common practice when dealing with publicity anxious celebrities.[26] Picture approval is the right given to an individual to choose which photos will be published and which will not. Robert Redford is well known for insisting upon picture approval.[27] Writer approval is when writers are chosen based on whether they will write flattering articles or not. Hollywood publicist Pat Kingsley is known for banning certain writers who wrote undesirably about one of her clients from interviewing any of her other clients.[citation needed]

There are many ways that censors exhibit creativity, but a specific variant is of concern in which censors rewrite texts, giving these texts secret co-authors.

According to a Pew Research Center and the Columbia Journalism Review survey, "About one-quarter of the local and national journalists say they have purposely avoided newsworthy stories, while nearly as many acknowledge they have softened the tone of stories to benefit the interests of their news organizations. Fully four-in-ten (41%) admit they have engaged in either or both of these practices."[29]

Book censorship can be enacted at the national or sub-national level, and can carry legal penalties for their infraction. Books may also be challenged at a local, community level. As a result, books can be removed from schools or libraries, although these bans do not extend outside of that area.

Aside from the usual justifications of pornography and obscenity, some films are censored due to changing racial attitudes or political correctness in order to avoid ethnic stereotyping and/or ethnic offense despite its historical or artistic value. One example is the still withdrawn "Censored Eleven" series of animated cartoons, which may have been innocent then, but are "incorrect" now.

Film censorship is carried out by various countries to differing degrees. For example, only 34 foreign films a year are approved for official distribution in China's strictly controlled film market.[30]

A 1980 Israeli law forbade banned artwork composed of its four colours,[citation needed] and Palestinians were arrested for displaying such artwork or even for carrying sliced melons with the same pattern.[31][32][33]

Music censorship has been implemented by states, religions, educational systems, families, retailers and lobbying groups and in most cases they violate international conventions of human rights.[34]

Censorship of maps is often employed for military purposes. For example, the technique was used in former East Germany, especially for the areas near the border to West Germany in order to make attempts of defection more difficult. Censorship of maps is also applied by Google Maps, where certain areas are grayed out or blacked or areas are purposely left outdated with old imagery.[35]

Under subsection 48(3) and (4) of the Penang Islamic Religious Administration Enactment 2004, non-Muslims in Malaysia are penalized for using the following words, or to write or publish them, in any form, version or translation in any language or for use in any publicity material in any medium: "Allah", "Firman Allah", "Ulama", "Hadith", "Ibadah", "Kaabah", "Qadhi'", "Illahi", "Wahyu", "Mubaligh", "Syariah", "Qiblat", "Haji", "Mufti", "Rasul", "Iman", "Dakwah", "Wali", "Fatwa", "Imam", "Nabi", "Sheikh", "Khutbah", "Tabligh", "Akhirat", "Azan", "Al Quran", "As Sunnah", "Auliya'", "Karamah", "False Moon God", "Syahadah", "Baitullah", "Musolla", "Zakat Fitrah", "Hajjah", "Taqwa" and "Soleh".[36][37][38]

Publishers of the Spanish reference dictionary Real Acdemia Espaola received petitions to censor the entries "Jewishness", "Gypsiness", "black work" and "weak sex", claiming that they are either offensive or non-PC.[39]

One elementary school's obscenity filter changed every reference to the word "tit" to "breast," so when a child typed "U.S. Constitution" into the school computer, it changed it to Consbreastution.[40]

British photographer and visual artist Graham Ovenden's photos and paintings were ordered to be destroyed by a London's magistrate court in 2015 for being "indecent"[41] and their copies had been removed from the online Tate gallery.[42]

Internet censorship is control or suppression of the publishing or accessing of information on the Internet. It may be carried out by governments or by private organizations either at the behest of government or on their own initiative. Individuals and organizations may engage in self-censorship on their own or due to intimidation and fear.

The issues associated with Internet censorship are similar to those for offline censorship of more traditional media. One difference is that national borders are more permeable online: residents of a country that bans certain information can find it on websites hosted outside the country. Thus censors must work to prevent access to information even though they lack physical or legal control over the websites themselves. This in turn requires the use of technical censorship methods that are unique to the Internet, such as site blocking and content filtering.[47]

Unless the censor has total control over all Internet-connected computers, such as in North Korea or Cuba, total censorship of information is very difficult or impossible to achieve due to the underlying distributed technology of the Internet. Pseudonymity and data havens (such as Freenet) protect free speech using technologies that guarantee material cannot be removed and prevents the identification of authors. Technologically savvy users can often find ways to access blocked content. Nevertheless, blocking remains an effective means of limiting access to sensitive information for most users when censors, such as those in China, are able to devote significant resources to building and maintaining a comprehensive censorship system.[47]

Views about the feasibility and effectiveness of Internet censorship have evolved in parallel with the development of the Internet and censorship technologies:

A BBC World Service poll of 27,973 adults in 26 countries, including 14,306 Internet users,[51] was conducted between 30 November 2009 and 7 February 2010. The head of the polling organization felt, overall, that the poll showed that:

The poll found that nearly four in five (78%) Internet users felt that the Internet had brought them greater freedom, that most Internet users (53%) felt that "the internet should never be regulated by any level of government anywhere", and almost four in five Internet users and non-users around the world felt that access to the Internet was a fundamental right (50% strongly agreed, 29% somewhat agreed, 9% somewhat disagreed, 6% strongly disagreed, and 6% gave no opinion).[53]

The rising usage of social media in many nations has led to the emergence of citizens organizing protests through social media, sometimes called "Twitter Revolutions." The most notable of these social media led protests were parts Arab Spring uprisings, starting in 2010. In response to the use of social media in these protests, the Tunisian government began a hack of Tunisian citizens' Facebook accounts, and reports arose of accounts being deleted.[54]

Automated systems can be used to censor social media posts, and therefore limit what citizens can say online. This most notably occurs in China, where social media posts are automatically censored depending on content. In 2013, Harvard political science professor Gary King led a study to determine what caused social media posts to be censored and found that posts mentioning the government were not more or less likely to be deleted if they were supportive or critical of the government. Posts mentioning collective action were more likely to be deleted than those that had not mentioned collective action.[55] Currently, social media censorship appears primarily as a way to restrict Internet users' ability to organize protests. For the Chinese government, seeing citizens unhappy with local governance is beneficial as state and national leaders can replace unpopular officials. King and his researchers were able to predict when certain officials would be removed based on the number of unfavorable social media posts.[56]

Social media sites such as Facebook are known to censor posts containing things such as nudity and hate speech.[57]

Since the early 1980s, advocates of video games have emphasized their use as an expressive medium, arguing for their protection under the laws governing freedom of speech and also as an educational tool. Detractors argue that video games are harmful and therefore should be subject to legislative oversight and restrictions. Many video games have certain elements removed or edited due to regional rating standards.[58][59] For example, in the Japanese and PAL Versions of No More Heroes, blood splatter and gore is removed from the gameplay. Decapitation scenes are implied, but not shown. Scenes of missing body parts after having been cut off, are replaced with the same scene, but showing the body parts fully intact.[60]

Surveillance and censorship are different. Surveillance can be performed without censorship, but it is harder to engage in censorship without some form of surveillance.[61] And even when surveillance does not lead directly to censorship, the widespread knowledge or belief that a person, their computer, or their use of the Internet is under surveillance can lead to self-censorship.[62]

Protection of sources is no longer just a matter of journalistic ethics; it increasingly also depends on the journalist's computer skills and all journalists should equip themselves with a "digital survival kit" if they are exchanging sensitive information online or storing it on a computer or mobile phone.[63][64] And individuals associated with high-profile rights organizations, dissident, protest, or reform groups are urged to take extra precautions to protect their online identities.[65]

The former Soviet Union maintained a particularly extensive program of state-imposed censorship. The main organ for official censorship in the Soviet Union was the Chief Agency for Protection of Military and State Secrets generally known as the Glavlit, its Russian acronym. The Glavlit handled censorship matters arising from domestic writings of just about any kindeven beer and vodka labels. Glavlit censorship personnel were present in every large Soviet publishing house or newspaper; the agency employed some 70,000 censors to review information before it was disseminated by publishing houses, editorial offices, and broadcasting studios. No mass medium escaped Glavlit's control. All press agencies and radio and television stations had Glavlit representatives on their editorial staffs.[citation needed]

Sometimes, public knowledge of the existence of a specific document is subtly suppressed, a situation resembling censorship. The authorities taking such action will justify it by declaring the work to be "subversive" or "inconvenient". An example is Michel Foucault's 1978 text Sexual Morality and the Law (later republished as The Danger of Child Sexuality), originally published as La loi de la pudeur [literally, "the law of decency"]. This work defends the decriminalization of statutory rape and the abolition of age of consent laws.[citation needed]

When a publisher comes under pressure to suppress a book, but has already entered into a contract with the author, they will sometimes effectively censor the book by deliberately ordering a small print run and making minimal, if any, attempts to publicize it. This practice became known in the early 2000s as privishing (private publishing).[66]

Censorship has been criticized throughout history for being unfair and hindering progress. In a 1997 essay on Internet censorship, social commentator Michael Landier claims that censorship is counterproductive as it prevents the censored topic from being discussed. Landier expands his argument by claiming that those who impose censorship must consider what they censor to be true, as individuals believing themselves to be correct would welcome the opportunity to disprove those with opposing views.[67]

Censorship is often used to impose moral values on society, as in the censorship of material considered obscene. English novelist E. M. Forster was a staunch opponent of censoring material on the grounds that it was obscene or immoral, raising the issue of moral subjectivity and the constant changing of moral values. When the novel Lady Chatterley's Lover was put on trial in 1960, Forster wrote:[68]

Lady Chatterleys Lover is a literary work of importance...I do not think that it could be held obscene, but am in a difficulty here, for the reason that I have never been able to follow the legal definition of obscenity. The law tells me that obscenity may deprave and corrupt, but as far as I know, it offers no definition of depravity or corruption.

Censorship by country collects information on censorship, Internet censorship, Freedom of the Press, Freedom of speech, and Human Rights by country and presents it in a sortable table, together with links to articles with more information. In addition to countries, the table includes information on former countries, disputed countries, political sub-units within countries, and regional organizations.

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