FOCUS: Immigrants prove big business for prison companies Fall River Herald News And while nearly half of the 400000 immigrants held annually are housed in private facilities, the federal government — which spends $2 billion a year on keeping those people in custody — says it isn't necessarily cheaper to outsource the work, a ... Private prisons cash in on illegal immigrantsBeaver Dam Daily Citizen Immigrants prove big business for prison companiesSan Jose Mercury News Immigrants Are Big Business for Private PrisonsFox News Salt Lake Tribune -Truth-Out all 446 news articles »