Olympics: The thrill and the agony

U.S. swimmers Conor Dwyer (left), Ryan Lochte (center) and Ricky Berens react after Michael Phelps finished the team's final leg to win the gold in the Men's 4x200m freestyle relay final during the swimming event at the London 2012 Olympic Games on July 31, 2012 in London.

Credit: FABRICE COFFRINI/AFP/Getty Images