Daniel Chard is a professor of history at Western Washington University whose work focuses on social movements, power, and political violence. His latest book, Nixon’s War at Home: The FBI, Leftist Guerillas, and the Origins of Counterterrorism explores the intersection of leftist violence and state repression in the late 1960s and early 1970s. In this conversation, Chard explains how the U.S. government’s mission to stop groups like the Weather Underground and the Black Liberation Army fueled a dramatic expansion of state policing powers that gave birth to the age of total surveillance.