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MCCARTHYISM (1947–1957)
The Smith Act of 1940 was used to prosecute Communist Party USA leadership in waves of trials beginning in 1949. The Rosenberg execution (1953), the imprisonment of W.E.B. Du Bois, Paul Robeson's passport revocation, and the Hollywood Ten contempt-of-Congress prosecutions defined the era. Several Smith Act prisoners served time at the U.S. Penitentiary in Terre Haute, Indiana.