FILE -In a March 13, 2012 file photo, Gary Mead, executive associate director for U.S. Immigration and Customs Enforcement Enforcement and Removal Operations, stands at a new civil detention facility ... more 
FILE -In a March 13, 2012 file photo, Gary Mead, executive associate director for U.S. Immigration and Customs Enforcement Enforcement and Removal Operations, stands at a new civil detention facility for low-risk detainees in Karnes City, Texas. The U.S. is locking up more illegal immigrants than ever before, generating a lucrative business for the nation's largest prison companies. Mead said that the government has never studied if privatizing immigrant detention saves money. (AP Photo/Will Weissert, File) less 
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Associated Press | Photo By Will Weissert, File
Thu, Aug 2, 2012 4:45 AM EDT