Brothers Ricardo Flores Magón and Enrique Flores Magón at Los Angeles Federal Court after being arrested on federal charges for their political activities. UCLA Charles E. Young Research Library Department of Special Collections hide caption

Ramtin Arablouei
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From 2011, at an Occupy DC protest in Washington. A man holds a sign and a ball and chain, representing his college loan debt. (AP Photo/Jacquelyn Martin) Jacquelyn Martin/ASSOCIATED PRESS hide caption
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What is the Bechdel test? A shorthand for measuring representation in movies
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MC Sha-Rock. Amanda Howell Whitehurst/Amanda Howell Whitehurst for NPR hide caption
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'Throughline' examines artificial intelligence — and these days AI is everywhere
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The Three Mile Island nuclear power plant two days after a meltdown forced a temporary closure of the plant. Bettmann/Bettmann Archive hide caption
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'Throughline,' NPR's history podcast, digs into the origins of house music
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BBoy B, Flash, 38 Slugs and Skol's 'Frankie Knuckles' tribute mural is displayed in the Fulton Market neighborhood in Chicago, Illinois on July 6, 2019. Raymond Boyd/Getty Images hide caption