What was the Red Scare and how did it relate to the fear of radicalism in this era?

The Red Scare refers to two distinct periods in U.S. history, primarily following World War I (1917-1920) and during the early Cold War (1947-1957), characterized by widespread fear of communism and radical leftism. This fear was fueled by events such as the Russian Revolution, labor strikes, and the rise of socialist movements, which led to paranoia about infiltration by radicals within American society. The government responded with measures such as the Palmer Raids, targeting suspected communists and anarchists, reflecting a broader societal anxiety about the potential for revolutionary change in the United States. Overall, the Red Scare illustrated how fears of radicalism could lead to significant repression and a curtailing of civil liberties.