Recently I have been read about the McCarran Internal Security Act/Subversive Activities Control Act that was pasted in 1950.
http://en.wikipedia.org/wiki/McCarra...l_Security_Act
The Act was a United States federal law that required the registration of Communist organizations with the United States Attorney General and established the Subversive Activities Control Board to investigate persons suspected of engaging in subversive activities or otherwise promoting the establishment of a "totalitarian dictatorship," fascist or communist. The Law also prevented the members of these groups from become citizens, and in some cases, were prevented from entering or leaving the country. The Act was a key institution in the era of the Cold War, tightening alien exclusion and deportation laws and allowing for the detention of dangerous, disloyal, or subversive persons in times of war or "internal security emergency". Congress repealed the registration requirements of the law in 1968 as a result of a number of decisions by the U.S. Supreme Court that declared certain aspects of the law unconstitutional, but some portions remain intact.
During World War II thousands of Japanese, Germans, and Italians were rounded up and interned as Enemies of the State, by the US, Canadians, and the British. It makes sense that during World War III the US/NATO would reinstate the their internment laws and round up and intern; all people with questionable alliances, ie Communist Party members. There is also a good chance that member of other fantic organzations, such as the Ku Klux Klan (KKK), American Nazi Party, Black Panther Party would probable interned too.