Passage of the mccarran act was related to which of these? (1 point) second red scare vietnam war truman

The answer is "second red scare" 

Second Red Scare.

Explanation:

The McCarran Act is a law that refers to the practice of accusing someone of subversion or betrayal. The term has its origins in the period of the History of the United States known as second red threat, which lasted from 1950 to 1957 and was characterized by a marked political repression to the communists, as well as by a campaign of fear to their influence in the American institutions and the espionage by agents of the Soviet Union. It has also been used to judge reckless and unsubstantiated accusations, as well as demagogic attacks on the character or sense of patriotism of political opponents.

The correct answer is D) Second Red Scare.

The McCarran Act was passed in 1950, a few years after the conclusion of World War II. At this time, the United States was going through the Second Red Scare. American citizens and the federal government feared the spread of communism on a domestic and international scale. To ensure that communist influences didn't infiltrate the American government or other institutions, the McCarran Act was passed. This made communist organizations register with the American government for surveillance purposes.

D. "Second Red Scare"