MESA, AZ – DECEMBER 08: Undocumented immigrants from El Salvador wait to be deported on an Immigration and Customs Enforcement (ICE), deportation flight bound for San Salvador on December 8, 2010 in Mesa, Arizona. Of the 111 Salvadorians on the flight, most had criminal records. Although illegal immigration to the United States has decreased nationally in the last few years, ICE deported almost 400,000 people in the last year, which is a record. Of that number, almost half had criminal records. The Obama administration has made targeting undocumented criminals a priority in its immigration enforcement policy. (Photo by John Moore/Getty Images)