McCarthy's Communist Witch-Hunt While the United States was fighting the Cold War to preserve its freedoms, the fears and anti-Communism the Cold War helped cause at home undermined some of those freedoms. One of the most notorious examples of this is Senator Joseph McCarthy. In his search for Communists in the U.S. government he infringed upon civil rights and freedoms, such as freedom of speech, provided to all Americans by Constitution. His actions caused a lot of innocent people, mostly government employees, to loose their jobs and reputation. In addition, in the case of Hollywood Ten, the freedom of speech - the most vital freedom in democra