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Michael Eric Dyson on his new book examining race in America

A new book examines our nation's racist past by speaking directly to Black Americans whose deaths fueled calls for change. In "Long Time Coming: Reckoning with Race in America," author and Vanderbilt University professor Michael Eric Dyson writes letters to Emmett Till, Eric Garner, Breonna Taylor, Sandra Bland & other "black martyrs." He discusses the…