I suppose you believe that those male AND female body builders do that through natural means? Forget it. They all use this stuff. Huge dosages, far, far, far beyond therepeutic dosages. It is just cheating, pure and simple.
I can remember the late Bob Hoffman of yesteryear (Strength and Health) who was into body building and wrote about the dangers of this stuff and that was nearly 40 years ago. Fooling around with testosterone in these amounts, or almost in any amounts is dangerous, unethical and cheating.
What is going to have to happen is that the first offense is a lifetime ban. Anything less is futile.
I still have a hard time believing that Landis - knowing he would be tested - in the IMMEDIATE aftermath of major disqualifications of other riders prior to the TDF, would be so stupid as to use a prohibited substance. And he wasn't found to have huge levels of testosterone, just above the limit.