The law made it a crime to support communism
HUAC investigation towards Hollywood's film industry where 10 people wee found guilty and sentenced to jail for one year.
communist spy accused Alger Hiss of taking part in a plan to infiltrate the government.
after Chiang Kai-shek fled, led by Mao Zedong, communism takes over in China
U.S detects unusual radioactivity , later concluding that the Soviet Union had detonated an atomic bomb
U.S Senator who claimed there were many communist spies in the government.
required communist groups to be investigated
Ethel and Julius Rosenberg are accused of being leaders of a spy ring but denied the charges and refused to answer questions. The later received the death sentence and were executed.