Uncertain Threats: The FBI, the New Left, and Cold War Intelligence

This book revisits one of the most controversial episodes of the Cold War: the FBI’s counterintelligence investigations into the activist leaders of SDS and other radical groups. While scholars have rightly emphasized political overreach, constitutional violations, and the Bureau’s institutional self-interest, newly declassified documents reveal that it also possessed a stream of intelligence — often fragmentary, sometimes credible — that pointed to international ties many scholars have overlooked or discounted.