"As the Korean War turned China into an archenemy of the United States, many Chinese Americans lived in fear of political accusations. In the name of investigating Communist subversive activities, the U.S. government launched an all-out effort to break up Chinese immigration networks. The investigation further divided the Chinese American community. When the Justice Department began the "Chinese confession program" in 1956 (it ended in 1966), even family members were pressured to turn against one another."
http://www.answers.com/topic/chinese-american
http://www.answers.com/topic/chinese-american