Ryan Lochte, Conor Dwyer, Matthew McLean and Michael Klueh (L-R) of the Unites States pose with the medals after the awarding ceremony of the men's 4X200m freestyle relay at the 11th FINA World Swimming Championships in Istanbul, Turkey, on Dec. 13, 2012. The United States won the gold with 6 minutes and 51.40 seconds. Xinhua photo