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Photo by: Alex Brandon

Holding Navy hats, Washington Nationals manager Davey Johnson, right, and others observe a moment of silence before a baseball game against the Atlanta Braves at Nationals Park Tuesday, Sept. 17, 2013, in Washington. The Nationals wore Navy hats, presented to them by Adm. James A. Winnefield, vice-chairman of the Joint Chiefs of Staff, before the game, to honor those killed and injured in the attack Monday at the nearby Washington Navy Yard. (AP Photo/Alex Brandon)

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