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BONUS EPISODE with Isabel Wilkerson, a Pulitzer Prize-winning journalist and the author of The Warmth of Other Suns: The Epic Story of America's Great Migration and Caste: The Origins of Our Discontents. Isabel joins the Armchair Expert to discuss caste systems in the United States, the patterns of regression in civil rights in this country and giving someone the basic benefit of the doubt. She explains assumptions of competence, how embedded assumptions are and that caste systems aren’t only about race.