National Archives at Atlanta
Some Cold War fears were legitimate as evidenced by documented cases of espionage. Fear of Bolshevik ideas infiltrating the U.S. were present even before the formation of the U.S.S.R. Espionage activities had very real consequences, as several high profile spies discovered. With a potential clash of superpowers ever present throughout the Cold War, each side yearned for any information they could find about what the other was doing.