“Our nearly century-long experiment in banning marijuana has failed as abysmally as Prohibition did, and California may now be pioneering a saner approach.” In very related news, the NYT’s Nick Kristof makes a case for Prop 19. “One advantage of our federal system is that when we have a failed policy, we can grope for improvements by experimenting at the state level. I hope California will lead the way on Tuesday by legalizing marijuana.” (Note also the example of Portugal, as studied by Glenn Greenwald.)