On Lance Armstrong’s return to the Tour de France after cancer:

Because Armstrong is the best cyclist in the world, there is an assumption among some of those who follow the sport that he, too, must use drugs. Armstrong has never failed a drug test, however, and he may well be the most frequently examined athlete in the history of sports. Whenever he wins a day’s stage, or finishes as one of the top cyclists in a longer race, he is required to provide a urine sample. Like other professionals, Armstrong is also tested randomly throughout the year. (The World Anti-Doping Agency, which regularly tests athletes, has even appeared at his home, in Austin, Texas, at dawn, to demand a urine sample.) Nobody questions Armstrong’s excellence. And yet doubts remain: is he really so gifted that, like Secretariat, he easily dominates even his most talented competitors?