Enlarge Photo

Photo by: Anja Niedringhaus

Jamaica's Usain Bolt leads United States' Ryan Bailey to win the men's 4x100-meter relay final during the athletics in the Olympic Park during the 2012 Summer Olympics, Saturday, Aug. 11, 2012, in London. Jamaica set a new world record with a time of 36.84 seconds.(AP Photo/Anja Niedringhaus)

Happening Now