The Hitch said:
Bull, my friend. Do you believe Warren, Chuck, Simms and the Bengals wr, forget his name, when they say they never took drugs and that only a minority do it?
No. Quite frankly, it would take a brave soul to come forward and spill the beans on either the NFL the NBA or any other professional sport. Even if someone as big as MJ or Bird in the NBA and Montana and Brady in the NFL came out and admitted to taking PED's, what would happen? Do you see them getting busted? I don't. These guys are revered by the American public (well, certainly by the fans of their teams) and too much money has been made through their playing days and afterwards as well. Brady obviously still playing, though probably not much longer. These aren't fringe sports, these are billion+ dollar industries we are talking about here. It would take something astronomical to bring the system down.
Another key example (IMO), look at the 2008 Tim Donaghy NBA betting scandal. Guy came out and said he bet on NBA games, made money, working with the mob, then pretty specifically named NBA games that were 'rigged' and who the officials that were complicit. He was quickly silenced, called a criminal (that part was true, he did bet on games and more), spent some time in jail, obviously never refereed another game, nobody else was penalized, no serious investigation of the officials, commissioner, betting companies, other NBA officials, etc. Nothing ever came out of it, except that Donaghy was busted.
http://www.theguardian.com/sport/2015/may/22/ex-nba-ref-tim-donaghy-organized-will-always-have-a-hand-in-sports
http://espn.go.com/nba/news/story?id=3436401
https://en.wikipedia.org/wiki/2007_NBA_betting_scandal
Game 6 of the 2002 western conference finals has been one of the most talked about games over the past decade+
https://www.youtube.com/watch?v=qjRcTiwVEwo
https://www.youtube.com/watch?v=9Pw9g1efbNs
And I am a basketball fan myself. Don't need to go into details, you can tell by my username.
Ps. Mods, if you feel this has nothing to do with the topic, then do what you wish with my comment.