The Red Scare was a period during the early 20th century (specifically after World War I) characterized by intense fear and paranoia about communism infiltrating American society. It led to widespread suspicion, government investigations, and repression of individuals or groups believed to be associated with communism.
Related terms
McCarthyism: McCarthyism refers to the practice of making unsubstantiated accusations or using unfair tactics to target individuals suspected of being communist sympathizers. It takes its name from Senator Joseph McCarthy, who played a prominent role in fueling anti-communist hysteria during the 1950s.
Espionage Act: The Espionage Act was a law passed in 1917 that made it illegal to interfere with military operations or support enemies during wartime. It was widely used during the Red Scare era to prosecute individuals suspected of spreading anti-government propaganda or engaging in espionage on behalf of foreign powers.
House Un-American Activities Committee (HUAC): The House Un-American Activities Committee was an investigative committee established by the U.S. House of Representatives in 1938. During the Red Scare period, HUAC conducted high-profile hearings and investigations into alleged communist influence in American society, especially within Hollywood and other entertainment industries.