Attorney General Alexander Mitchell Palmer . During the

 

Scare, the Lusk Committee  investigated those suspected of

 

sedition, and Many laws were passed in the US that sanctioned the

 

 firings of Communists. First came the Hatch Act of 1939  which

 

 was sponsored by Carl Hatch  of New Mexico . This law attempted

 

 to drive Communism out of public work places. The Hatch Act

 

outlawed the hiring of federal workers who advocated the

 

"overthrow of our Constitutional form of government". This phrase

 

 was specifically directed at the Communist Party . Later in the

 

 

spring of 1941 another anti-communist law, Public Law 135 , was

 

passed. This law sanctioned the investigation of any federal worker

 

suspected of being communist and the firing of any communist

 

 worker.[71] 

 

 

 

 

Following World War II  and the rise of the Soviet Union, many anti-

 

communists in the United States feared that Communism would

 

triumph throughout the entire world and eventually be a direct threat

 

 to the US government. This fear led to the domino The first major

 

 manifestation of anti-communism in the United States occurred in

 

 1919 and 1920, during the First Red Scare , led by theory , which

 

 stated that a Communist takeover in any nation could not be

 

 tolerated because it would lead to a chain reaction that would result

 

 in worldwide Communism. There were fears that powerful

 

 Communist states such as the Soviet Union  and the People's

 

Republic of China  were using their power to forcibly assimilate

 

 other countries into Communist rule. The Soviet Union's expansion

 

 into central Europe  after World War II was seen as evidence of

 

 this. The US policy of halting further Communist expansion came to

 

 be known as containment . This period, up to 1957, is known as the

 

 Second Red Scare .

 

The deepening of the Cold War  in the 1950s saw a dramatic

 

increase in anti-communism in the United States, including the anti-

 

communist campaign known as McCarthyism . Thousands of

 

 Americans, such as the filmmaker Charlie Chaplin , were accused

 

of being Communists or sympathizers, and many became the

 

 subject of aggressive investigations by government committees

 

 such as the House Committee on Un-American Activities . As a

 

result of sometimes vastly exaggerated accusations, many of the

 

 accused lost their jobs and became blacklisted , although most of

 

 these verdicts were later overturned. This was also the period of

 

 the McCarran Internal Security Act  and the Julius and Ethel

 

Rosenberg  trial. After the collapse of the Soviet Union many

 

 records were made public that in fact verified that many of those

 

 thought to be falsely accused for political purposes were in fact

 

Communist spies or sympathizers (see Venona Project ).

 

During the 1980s, the Ronald Reagan  administration pursued an

 

aggressive policy against the Soviet Union and its allies by building

 

 up weapons programs, including the Strategic Defense Initiative 

 

 The Reagan Doctrine  was implemented to reduce the influence

 

of the Soviet Union worldwide by providing aid to anti-Soviet

 

resistance movements, including the Contras  in Nicaragua  and the

 

 Mujahideens  in Afghanistan . The accidental downing of Korean Air

 

 Lines Flight 007  near Moneron Island  by the Soviets on Sept. 1

 

, 1983 contributed to the anti-communism propaganda of the 1980s

 

. KAL 007 had been carrying 269 people, including a sitting U.S

 

. Congressman, Larry McDonald .

 

 

 

 Ronald Reagan  and Margaret Thatcher 

 

The US government usually argued its anti-communist policies by

 

 citing the human rights record of communist states, most notably

 

 the Soviet Union during the Joseph Stalin  era, Maoist  China, North

 

 Korea , and the Pol Pot -led Khmer Rouge  government and the pro

 

-Hanoi People's Republic of Kampuchea  in Cambodia . Those

 

 states killed millions of their own people and continued to suppress

 

 civil liberties of the surviving population. During the 1980s, the

 

 Kirkpatrick Doctrine  was particularly influential in American politics;

 

 it advocated US support of anti-communist governments around the

 

 world, including authoritarian  regimes.

 

Anti-communism became significantly muted after the fall of the

 

Soviet Union and Eastern bloc  Communist regimes in Europe

 

between 1989 and 1991; the fear of a worldwide Communist

 

 takeover was no longer a serious concern. Remnants of anti-

 

communism remain, however, in US foreign policy toward Cu

 

ba  and North Korea . In the case of Cuba, the US continues to

 

 maintain economic sanctions  against the country. Tensions with

 

 North Korea have heightened as the result of reports that it is

 

 stockpiling nuclear weapons , and the assertion that it is willing 

 

sell its nuclear weapons and ballistic missile  technology togroup

 

 willing to pay a high enough price. Much of the US forepolicy

 

 establishment does not regard the People's Republic of China  as

 

 communist in any meaningful sense.[citation needed ] Nevertheless

 

, there is some hostility toward the Chinese government, particularly

 

 among conservative Congressional Republicans. For example,

 

national security issues were raised during Chinese state-owned

 

 CNOOC Ltd.'s takeover bid for Unocal , an American energy firm.

 

[citation needed ]