UNION OF CONCERNED SCIENTISTS UPDATE ON JAPAN’S NUCLEAR POWER CRISIS Below is a partial excerpt from the March 25th conference with the Union of Concerned Scientists.  The UCS claims to not be either for or against nuclear power. “MR. [David]  LOCHBAUM:  Thank you, Elliott, and good morning. Yesterday, there were reports that three workers received radiation exposures from water that they were walking through in order to repower some equipment in the Unit 3 turbine building at Fukushima.  It’s not clear what the source of this radioactivity might have been. The turbine building is normally isolated from both the Unit 3 reactor core and the Unit 3 spent fuel pool. There were reports of damage to fuel in the Unit 3 reactor core, and also to damage to fuel in the Unit 3 spent fuel pool.  But it’s not clear at the moment from the data we’ve seen how the water in the basement of the Unit 3 turbine building became contaminated. We haven’t seen any clear signs whether it came from the reactor core or from the damaged fuel in the spent fuel pool.  They were adding water from above and from fire trucks to the spent fuel pool [...]