Communism, in the Soviet-style form, or even Chinese-style form would be highly unlikely to occur in the U.S., as these models of government were highly ineffective, dictatorial, and removed incentives for individual and corporate productivity. There also existing severe curtailing of human rights, including those of freedom of speech, freedom of the press, freedom of assembly, freedom of religion and the right to bear arms.
Propoganda was the main method used to deter communism in America. 'Witch Hunts' was also notoriously used to discourage people from Communism ideals.
Communism
To stop communism in America
Venezuela.
Due to poor condition in Latin America, communism started to seem a lot more appealing.
Losing China to communism was a big blow to America because they were previously a faithful ally to the United States.
Yes in cuba
Communism
To prevent Communism from spreading.
Stopping the spread of communism
south america is neither a communist nor a country
To try to stop the spread of Communism as America wanted to keep Communism as far from their borders as possible. This was because it threatened their way of life.