Armstrong had almost unlimited resources to develop an elaborate scheme and access to officials and doctors to aid him in doping to the gills while maintaining a "clean" record. Why then do people think that Bolt from a small island in the Caribbean with limited resources is sophisticated enough to carry out a systemic doping program and evade detection. I really think Bolt is a natural talent and what you see on the track is just what it is. A 6 foot 5 guy with the leg turnover of a 5' 11 guy but with the added advantage of a longer...much longer stride length.