Red Scare
any of several events where widespread fear of communism or leftism develops
Palmer Raids
raids and arrests in United States
Red Scare in Japan
promotion of fear of the rise of communism or radical leftism in Japan
McCarthyism
phenomenon in the United States of making accusations of subversion or treason without proper regard for evidence, named after Senator Joseph McCarthy
First Red Scare
early 20th-century American historical event