Which is funny. If the US actually critically studied communism in Asia, it was really anti colonialist nationalist movements which espoused communism to mobilize the peasantry and offer incentives like land reform.
Did you ever watch Ken Burn's documentary on the Vietnam War? I have watched it several times. Ho Chi Minh was a brilliant, driven man, such a tragic missed opportunity. He thought the US would support Vietnam's drive for independence given our history, we held our nose and supported an imperial power (france) and should have not stood in the way of Vietnamese independence. Have to look at in the the historical context, support a communist independence movement in asia against a needed ally in europe?

Ho Chi Minh: The Early Years | The Vietnam War | PBS LearningMedia
Learn about the life of Ho Chí Minh, Prime Minister and President (1945–69) of the Democratic Republic of Vietnam (North Vietnam), and how he became a communist and founded the Viet Minh, a national independence coalition.
www.pbslearningmedia.org