When america's "containment" policy failed in china, the blame was placed on?

This is from quizlet ... US public stunned that China had become Communist. Containment had failed! In Congress, conservative Repubs, Democrats attacked Truman administration for supplying only limited aid to Chiang. If containing communism was important in Europe, why wasn't it equally important in Asia? State Department replied by saying that what had happened in China was result of internal forces. US had failed to influence these forces, like Chiang's inability to retain the support of his people. Trying to do more would've only started war in Asia, war that US wasn't prepared to fight. Some conservatives in Congress rejected this argument as lame excuse. Claimed US government was riddled w / Communist agents. Like wildfire, US fear of communism burned out of control, flames were fanned further by events in Korea the next year.