+1 what Wahine said about the juniors...

As if the physical aspects of doping weren't bad enough, there's the psychological aspects too. Many of these guys seem to be in total denial and they have to kid themselves as much as they need to kid others. I really liked reading that (super long) interview with Landis on the topic. If you have many hours to spend on the topic, check this out: http://nyvelocity.com/content/interv.../landiskimmage (aka "The Gospel according to Floyd").