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PHOENIX - APRIL 28: Undocumented Mexican immigrants are photographed while being in-processed at the Immigration and Customs Enforcement (ICE), center on April 28, 2010 in Phoenix, Arizona. Across Arizona, city police and county sheriffs' departments turn over detained immigrants to ICE, which deports them to their home countries. Last year ICE deported some 81,000 illegal immigrants from the state of Arizona alone, and with the passage of the state's new tough immigration enforcement law, the number of deportations could rise significantly. (Photo by John Moore/Getty Images)

PHOENIX - APRIL 28:  Undocumented Mexican immigrants are photographed while being in-processed at the Immigration and Customs Enforcement (ICE), center on April 28, 2010 in Phoenix, Arizona. Across Arizona, city police and county sheriffs' departments turn over detained immigrants to ICE, which deports them to their home countries. Last year ICE deported some 81,000 illegal immigrants from the state of Arizona alone, and with the passage of the state's new tough immigration enforcement law, the number of deportations could rise significantly.  (Photo by John Moore/Getty Images)