Yesterday, July 6, 2010, the Department of Justice (“DOJ”) challenged Arizona’s immigration law in federal court.  In its brief, DOJ argued that the law is unconstitutional because it infringes on the federal government’s authority to establish and enforce immigration policies.  Additionally, DOJ stated that Arizona’s law results in burdens to federal agencies; takes resources away from areas of high priority such as terrrorism; and, will result in harrassment of foreign nationals who are in the US lawfully and even US citizens.