The two things I hear said about Bolt often next to each other:
1. Insanely good.
2. No way he's clean.
This is really sad. Of course, I don't think there has been a clean world record in the sprint events for the last 20 years.
I think we are wasting time trying to clean up sports, and we should let it be the free-for-all. Jose Canseco should be in the Hall of Fame as the first honest doper in sports. They should give Ben Johnson his medals back.
http://en.wikipedia.org/wiki/List_of_sportspeople_sanctioned_for_doping_offences