Associated Press
FILE - This March 9, 2012 file photo shows swimmers competing in the men's 1500 meter freestyle during the British Swimming Championship selection trials and Olympic test event at the London 2012 Olympic Aquatics Centre at the Olympic Park in London. Wednesday, April 18, 2012 marks the 100-day countdown to the London Olympics. As London organizers put the finishing touches on the venues and city officials prepare for an invasion of fans, athletes around the world are training for the big moment. (AP Photo/Sang Tan, File)

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