Well it could be other things (or cut with other things even if it was the dope). It could have just been Tobacco even for fucks sake, but that isn't going to stop anyone from assuming stuff (Bongs are illegal to sell what.) about it. Whether or not he was hitting the Magic Dragon while he wasn't at the olympics has nothing at all to do with the IOC at fucking all is the really annoying thing.
If he apologised to the American public it would be less fail. If he apologised to American Institute of Sport (if you have one) or something, that would be less fail. IOC is retarded.
Stance on Marijuana aside (I agree with you if it wasn't obvious), this is still dumb.