I think there's a message that should be sent to young (high school and college) people:
Ultimately, the good guys win.
If you're Daniel Komen and you retire soon enough, you might get away with it, but if you get greedy and stick around in the sport long enough, somebody's going to make a mistake, and then the WHOLE WORLD will know what you are:
Ben Johnson
Charlie Francis
Trevor Graham
Victor Conte
Jamaicans not testing athletes
Kenyan marathoners
ALL Russians
Rachid Ramzi and the Moroccans
Lance Armstrong, Ullrich, Basso, Contador, Landis, etc.
....AND A LOT MORE
In the long run CHEATING DOESN'T PAY.