Communism catered to very poor and destroyed countries. If we loaned the country money, that would boost their economy so they would fall to communism. One such case was the 1949 Marshall Plan, and it worked very well.
<span>American leaders believed that, if nations and people had enough food & money, these European nations would not be susceptible to the promises of communists. America could also gain allies if they helped countries, and by doing so, American and Western ideologies would spread and fix themselves, so communism couldn't get a foothold. </span>
The unwritten constitution includes the practice of judicial review. Judicial review is the idea that the actions of the legislative and executive branches of the United States government are subject to review by the Judicial branch!