The failure of marijuana prohibition and its inherent hypocrisy are certainly becoming clearer than ever these days, and the discussion is starting to include some pretty big names. The report released by the Global Commission on Drug Policy two weeks ago is evidence of that, and the discussion is spreading to others. The last three U.S. presidents have admitted to using marijuana, and it did not stop them from going on to lead successful lives. This is largely attributable to the fact that they…