America's Complicated Past Stirs Battle Over Monuments, Memorials
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A man holds a sign up during a protest rally against the Confederate flag in Columbia, South Carolina on June 20, 2015.
( MLADEN ANTONOV/AFP / Getty )
( MLADEN ANTONOV/AFP / Getty )
Produced by Jillian Weinberger and Corinne Dillon
Hosted by Todd Zwillich