Second, there was a time, and not that long ago, when known steroid use caused raised eyebrows, but wasn't considered particularly harmful. This sounds like but another plan from an unbiased 60 Minutes to try to embarrass Bush. Now that's a surprise.
Canseco may be an embarassment, but he isn't a fool when it comes to marketing...
He knew the "Bush knew" tack would get him tons of airtime and publicity.