Interesting letter from Victor Conte along with Dwain Chambers about how athletes use drugs and get away with it.... I'm surprised at the use of EPO by sprinters.... although looks like testosterone is standard issue drug for all athletes... also note cheating American testers reducing out of competition tests leading up to the Olympics.....
http://news.bbc.co.uk/sport2/hi/olympics/athletics/7403158.stm
http://news.bbc.co.uk/sport2/hi/olympics/athletics/7403158.stm