PBS NewsHour

Capitol attack forces reckoning on radical factions

The Department of Homeland Security last year classified white supremacy as the greatest domestic terror threat to the U.S., and last week's Capitol insurrection by pro-Trump groups has renewed those concerns. Cynthia Miller-Idriss, who runs the Polarization and Extremism Research & Innovation Lab at American University, and J.M Berger, an analyst on extremism, join William Brangham to discuss.

Episode 11

12m 15s

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