Equally interesting, though, is what did not occur after the terrorist attacks. Given the experiences in comparable chapters of U.S. history (with special programs directed at German-Americans in World War I, Japanese-Americans in World War II, and "communist radicals" after that war), a much stronger backlash against immigrants and Muslims was predicted after 9/11. The most dire of the predictions, though, did not materialize. There was no round-up or internment of Muslim-Americans; the targets of government actions were noncitizens, principally unauthorized immigrants. There also was no legislative effort in Congress to place a moratorium on legal immigration, or on immigration from certain countries.