Answer:
A frenzy over the perceived threat posed by Communists in the U.S. during the Cold War
Explanation:
The Red Scare occurred primarily between 1917-1920, and then during the Cold War, and essentially was termed to describe the US's general populations fear of the spread of communism across the world and into the United States, and the active lookout to stop it. The Red Scare was taken a step extreme with McCarthyism, which saw to the accusation of many political and ordinary people being accused of being a communist and being blacklisted.
The Red Scare proceeded to die down during the 1920s with the advent of the rise of Nazism, and during the 1950s it ended with McCarthy's loss of credibility where his accusations were mostly proven false.
Learn more about McCarthy, McCarthyism, and Red Scare, here:
brainly.com/question/27709522?referrer=searchResults - Result of McCarthyism.
brainly.com/question/19343828?referrer=searchResults - Goal of McCarthyism.
brainly.com/question/14176721?referrer=searchResults - Definition of McCarthyism (refer to Aewright8383 's answer).
