Julius Rosenberg in McCarthyism & Red Scare
Julius Rosenberg (1918–1953) was a member of the Communist Party U.S.A., executed in 1953 after being convicted under the Espionage Act for participating in a Soviet spy ring. Rosenberg's wife Ethel was executed at the same time.
While many liberals and leftists long believed the Rosenbergs had been unjustly executed in a time of national hysteria over communism, we now know that Julius Rosenberg was, in fact, a Soviet spy, and that Ethel Rosenberg was at least privy to her husband's espionage activities.