New York City in the 1960s was the beating heart of the United States, a global metropolis thriving on its abundance and diversity. But in a short time, Gotham went through an extraordinary transition. The postwar Golden Years gave way to a frantic era of social, political, racial, and economic turmoil. Groups with their own distinct ideological aims gained a presence in the city. And with this frenzied new era came a new wave of violence.   Terrorism has had an impact on the course of US history far greater and for far longer than is commonly understood. The ripple effects of this largely forgotten moment--and importantly, how the authorities countered it–has played a significant role in how contemporary American life has unfolded.   Professor at the Center for Terrorism at the John Jay College of Criminal Justice, David Viola unveils archival collections, newly declassified files, and preserved court records in this groundbreaki