Rubio reaches for water during his State of the Union response Tuesday, but in the wake of the gaffe, the Florida senator has been displaying at least one critical political skill: good damage control.
As scientists close the gap on doping detection, athletes bent on cheating can still game the system. Stricter enforcement from league authorities is critical to redeeming sports scandalized by doping – cycling, baseball, and potentially the NFL.
Athletes accused of using banned substances threaten the integrity of sports ranging from track and field to baseball and cycling. Will the NFL be next? Here is a look at key moments in the evolution of sports doping.