The document discusses McCarthyism and the House of Un-American Activities Committee (HUAC) investigations in the 1940s-1950s. Senator Joseph McCarthy publicly accused over 200 government employees of being communists. HUAC investigated Hollywood for communist influence, interviewing "friendly witnesses" who named others. Those who refused to name names, like the "Hollywood Ten", were blacklisted. The Red Channels pamphlet in 1950 also listed over 150 people in media and entertainment to be blacklisted. Playwright Arthur Miller was blacklisted and jailed for contempt of Congress for refusing to name names to HUAC.