C'mon you guys, let's lay off Michael Phelps a bit. He's 23, a world-class athlete, and he relaxed a bit. He smoked a little bit of something that, while illegal, is far less dangerous than tobacco or alcohol.
Maybe instead of regressing into our puritanical nature and wondering how such a good kid can fall so far, we should be examining why we criminalize this kind of behavior. I mean, no one can say that smoking pot will make Phelps a better athlete, but should we really excoriate him for such a minor infraction?