U.S. President Barack Obama speaks at the 50th anniversary of the March on Washington in Washington
U.S. President Barack Obama speaks from the steps of the Lincoln Memorial to commemorate the 50th anniversary of the March on Washington and Martin Luther King Jr.'s I have a dream speech in Washington August 28, 2013. The bell behind Obama had hung in the 16th Street Baptist Church in Birmingham, Ala., before the church was bombed in 1963 just weeks after King's famous speech. REUTERS/Kevin Lamarque (UNITED STATES - Tags: POLITICS ANNIVERSARY TPX IMAGES OF THE DAY)
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