Christie's is an odd one, didn't he fail in the late 90s when he was long retired and came back for one race for a bet?
Drugs were (and possibly still are) the norm at the highest level. I think six or seven of the eight guys in the 1988 Olympic 100m final tested positive for something at some stage. I want to believe that Usain Bolt is a freak of nature and his times are down to a unique technique and physique but I wonder if it's naive to believe that? I mean a few years ago people lauded Lance Armstrong for staying clean and beating all the guys who were doping and we all know how that turned out...
Christie failed a drugs test in the 1988 final but was cleared claiming that some sort of herbal remedy had given him a false reading. Complete and utter bullshine, as he later got caught. A guy who ran quicker at 30 than 20, do me a favour.
There are 2 types of sprinters, those who are drug cheats and those that haven't been caught yet.