After WWII and during the 1940s-1950s, Joseph McCarthy took advantage of American fears about communism. He developed a list of around 200 government employees he claimed were communist infiltrators. Many people were accused of being communists, including government officials, writers, and entertainers. Their careers were often destroyed. McCarthyism led to paranoia and hysteria before beginning to decline in 1954 when McCarthy died in 1957. It showed how susceptible people can be to accusations and suspicion.