How did the threat of communism affected the U. S. government during the Cold War

Following World War II (1939-45), the democratic United States and the communist Soviet Union became engaged in a series of largely political and economic clashes known as the Cold War. The intense rivalry between the two superpowers raised concerns in the United States that Communists and leftist sympathizers inside America might actively work as Soviet spies and pose a threat to U.S. security.

your answer is c i hope that