McCarthyism: The political action of making accusations of Disloyalty, Subversion, or Treason without proper regard for evidence.

Joseph Raymond McCarthy: (November 14, 1908 – May 2, 1957) U.S Republican Senator from the state of Wisconsin. During the Cold War, Mr. McCarthy believed that there were a large number of Communist and Soviet spies on the U.S Government.

Red Scare: Two different periods of "ANTI-COMMUNISM" in the United States.

The Second Red Scare: (1947-57) This period occurred after WWII by the fear of spies in the highest reaches of the Justices, Treasury and States Department.

Espionage: An individual involve of getting secret information without the permission of the holder of the secret information.

Anti-communism: is to be against Communism.

Communism: is a social structure in which classes are abolished and property is commonly controlled, as well as a political philosophy and social movement that advocates and aims to create such a society.