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Janet Evans waves to the crowd after swimming in the women's 400-meter freestyle preliminaries at the U.S. Olympic swimming trials, Tuesday, June 26, 2012, in Omaha, Neb. (AP Photo/Mark J. Terrill)

Swimmer Janet Evans returns to Olympic Trials

At age 40, American swimmer Janet Evans returns to the Olympic Trials for the first time since 1996, when she retired from the sport with four Olympic gold medals. --By Carla Thorpe