Sadly Spoony, it is not a few bad apples. EPO is undetectable after 8 hours. HGH has never been detected despite wide use. THC (the clear) was a widely used steroid for 10 years that could not be detected. Testosterone Cream can't be detected. SARMS. The new 'clear', a steroid used by up to 20% of elite athletes is undetectable as we speak. Caffeine, Prozac, Ritilin and Modafinal are legal performance enhancing drugs. It becomes a bit like an US/Soviet arms race where you get left behind if you want to be clean. Nicolas Aubier, a former French professional cyclist, explains the rationale behind drug use in the book Rough Ride: Behind the Wheel with a Pro Cyclist, by Paul Kimmage: “To be honest, I don’t think it’s possible to make the top 100 on the ranking list without taking EPO, growth hormone or some of the other stuff.” In 2006 Operacion Puerto implicated 55 cyclists (Contador and F. Schlek included) and 150 tennis and soccer players in blood doping and steroid use. This was one doctor's handiwork. Sad but true.