Associated Press
FILE- A Feb. 9, 2007 file photo provided by the Department of Homeland Security shows family detainees walking down the hall at the T. Don Hutto Residential Center in Taylor, Texas. The U.S. is locking up more illegal immigrants than ever before, generating a lucrative business for the nation's largest prison companies. (AP Photo/Department of Homeland Security, Charles Reed, HO, File)

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