i went to Tim Noakes's talk on doping in sport last night. his stated outright that professional sport performances are either doped or fixed. he is of the opinion that Landis won his Tour because the race was fixed (someone high up in the Tour organisation commented in public that the influence of the Mafia was destroying the tour). he also stated that all/most TdF riders are on PED's but ride below the radar of detection and he supported his argument, not with his own findings but from a host of books that he has read on doping in sport in general. his argument was furhter supported by various graphs depicting the improvement in times wrt to athletics and cycling with the advent of EPO. the big culprits (countries) were / are USA, Australia, the old CCCP and East Germany.