Photo Gallery Former Dopers at London Olympics
Scottish cyclist David Millar celebrates ahead as he wins the 12th stage of the 99th Tour de France. He was banned from the sport for doping in 2004, but has been competing again since 2006. This spring, the international Court of Arbitration for Sport (CAS) forced British officials to stop excluding former dopers once their suspension had ended. The decision cleared the way for Millar to compete at the London Olympics.
Among other athletes once banned for doping who will be at the London Olympics are US swimmer Jessica Hardy...
...and American sprinter Justin Gatlin (right)...
...as well as American sprinter LaShawn Merritt.
Olympic gold medal winner in track cycling and the flag-bearer of the British team disagrees with such leniency. "I don't see anything wrong with having more stringent rules," he told the BBC in April. "That to me is a good incentive not to take drugs. If you take that away, are you taking a step back in the fight against drugs?"