President Barack Obama and the first lady, Michelle, prepare to fly to Selma, Ala., and board Air Force One at Joint Base Andrews, Md., March 7, 2015. The president, first lady and their teenage daughters, Malia and Sasha, will help mark the 50th anniversary of Bloody Sunday in Selma, where state troopers violently attacked a peaceful civil rights march on the Edmund Pettus Bridge. (U.S. Air Force photo by Senior Master Sgt. Kevin Wallace/RELEASED)
Master Sgt. Kevin Wallace
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