On September 13, 1971 the State of New York shot and killed 39 of its own citizens, injured hundreds more, and tortured the survivors. The plan to retake D Yard led to one of the bloodiest days in American history, and set the stage for the worst aspects of modern policing. Radical lawyer Elizabeth Fink tells the story of the Attica prison rebellion, and how she exposed the cover up that went on for decades.