Others with more inside information such as cyclingheroes (where is he anyway?) can add to this: but the collusion is between JB and UCI. Labs usually do not know whom they are testing. They just report the test results to the UCI who then do whatever they want with it. So, it is not so much as JB having some magic potion that others don't have, as it is with the ability to dope without fear of being caught. There have been umpteen threads on this subject several months back... The best evidence for continuing collusion is the way in which McQuaid has spoken up in favor of Contador being clean, etc. in spite of the possible link to Operation Puerto. At the end of last Tour, Contador even offered his DNA to prove that it wasn't his blood in the OP blood bag labeled A.C. Then, this year, when the Spanish authorities announced that riders could volunteer DNA to clear their names, we didn't exactly see him come forward to take the offer. In spite of all this, UCI is heavily behind him. Why? Why are they persecuting other riders to the point of destruction and choosing to help a chosen few, many of whom are associated with the Hog?