Usain Bolt regains 100-meter gold at worlds

Olympic champion Usain Bolt restored order to the world of sprinting, regaining the 100-meter world championship title he lost through a false start two years ago.

Despite a slow start in the pouring rain, the Jamaican steadily caught up with 2004 Olympic champion Justin Gatlin and left the American behind with a trademark late burst of speed that, still, no one can match. (AP)