The report finds that the harsh measures enacted against immigrants since September 11 have had dire consequences for American antiterrorism efforts, fundamental civil liberties, and national unity. Specifically, the authors find that the U.S. government has placed too much emphasis on immigration as part of its counterterrorism strategy; that immigration enforcement is of limited effectiveness; and that arresting a large number of noncitizens on grounds not related to domestic security provides the American public with a false sense of security. In addition, the report discusses the widespread discrimination experienced by Arab- and Muslim-Americans in the aftermath September 11 and explains how rampant discrimination has undermined our national unity.