littlebabyjesus
one of Maxwell's demons
That's exactly the excuse the BBC made for Christie when he was done for the second time.
I don't believe for 1 minute athletes are innocently taking banned stimulants.
I agree that it stretches credulity in the Gatlin case. Appears that his only possible defence was one of being set up, which is the last resort of the guilty. It then ends up as balance of probabilities, I guess. Given that he couldn't prove he was set up, and pretty much anyone could put that as a defence, accepting it as a defence without proof would mean you might as well give up.
I'm not interested in Gatlin's contrition. Anyone who intentionally drug-cheats once should be banned for life, imo. They give up any right to participate further. Difficulty then is assessing the level of proof needed. Failing drug tests can have other explanations than deliberate cheating, although cheats will also hide behind those alternative possible explanations...