(Reuters) For 9.81 glorious seconds on Sunday (August 14), all the ills that have dogged athletics recently were forgotten as Usain Bolt stormed to victory in the 100 metres final to become the first man to win three successive Olympic titles on the track. The Jamaican superstar trailed arch-rival Justin Gatlin, roundly booed by the Rio crowd for his doping past, until the 70 metre mark but then swept past the American, finding time […]