What statement about the Red Scare of the 1920's is true?

The Red Scare of the 1920s was marked by widespread fear of communism and radical leftist ideologies following the Russian Revolution of 1917. It led to a series of government actions, including the Palmer Raids, where thousands of suspected radicals were arrested and deported without proper legal procedures. This period was characterized by heightened paranoia, anti-immigrant sentiments, and the suppression of civil liberties, as many Americans feared the spread of communism within the United States.