Isabel Wilkerson is a winner of the Pulitzer Prize, a National Humanities Medal and a National Book Critics Circle Award for Nonfiction, and she joins us to talk about the categories Americans are born into that rank us and grade us through no action of our own.
Read moreThe Epic Story of America's Great Migration
How did the flight of almost six million African-American citizens from the South to northern and western cities change 20th Century America?
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