Yusra Mardini visits the Olympiapark Berlin on March 9. The 18-year-old Syrian refugee hopes to qualify for the Rio Olympics as a swimmer on the refugee team. Alexander Hassenstein/Getty Images for IOC hide caption

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French marathon swimmer Benoit Lecomte (left) prepares to jump into the Potomac River in Washington, D.C., in 2002. In 1998, Lecomte swam across the Atlantic Ocean. Manny Ceneta /AFP/Getty Images hide caption

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Ben Lecomte Swam Across The Atlantic; Next He Tries The Pacific

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Daina Bouquin competes in the first U.S. Winter Swimming Championships on Saturday in Lake Memphremagog near Newport, Vt. The event drew swimmers from around the world to race in icy water that was below 32 degrees F. Herb Swanson for NPR hide caption

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'Cold Actually Feels Good' At The U.S. Winter Swimming Championship

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Attorney Robert Allard, seen here with former swimmer Jancy Thompson in 2010, says USA Swimming still needs to improve its handling of sexual abuse claims. The organization is also facing congressional scrutiny. Ben Margot/AP hide caption

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USA Swimming Faces Lingering Doubts Over Sexual Abuse

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Lance Armstrong warms up for the swimming leg of the 2011 Xterra World Championship triathlon in Kapalua, Hawaii (before he was banned from most competitions). This weekend, he'll swim in a Texas meet for masters swimmers. Hugh Gentry /Reuters /Landov hide caption

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