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Associated Press
FILE - In this Aug. 24, 2015 file photo, Alek Skarlatos arrives at the Elysee Palace in Paris, France. Skarlatos, who was one of three Americans who took down a heavily armed man on a passenger train speeding through Belgium, will participate in the dancing competition series "Dancing With the Stars," premiering on Sept. 14. (AP Photo/Michel Euler, File)

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