Photos: Freedom Summer 50 years later
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U.S. Rep. John Lewis, D-Ga., delivers the keynote address at the Mt. Zion United Methodist Church in Philadelphia, Miss., Sunday, June 15, 2014, during a commemorative service for three civil rights workers, James Chaney, Andrew Goodman, and Michael Schwerner, all killed in 1964 in Neshoba County for their voter registration work among blacks in then segregationist Mississippi. (AP Photo/Rogelio V. Solis)