My thoughts, at Reason.com. The gist:

In the coming weeks and months, Congress will be turning its attention to financial market reform, in hopes of avoiding future financial crises. According to perceived wisdom, the root cause of the 2008 financial crisis was excessive risk-taking, and proper regulation can detect and prevent such excess in the future.

This view is a pipe dream. Most new regulation will do nothing to limit crises because markets will innovate around it. Worse, some regulation being considered by Congress will guarantee bigger and more frequent crises.