Detaining immigrant children has morphed into a surging industry in the U.S. that now reaps $1 billion annually - a tenfold increase over the past decade. Health and Human Services grants for shelters, foster care and other child welfare services for detained unaccompanied and separated children soared from $74.5 million in 2007 to $958 million dollars in 2017. The agency is also reviewing a new round of proposals amid a growing effort by the White House to keep immigrant children in government custody. Currently, more than 11,800 children, from a few months old to 17, are housed in nearly 90 facilities in 15 states. By far the largest recipients of taxpayer money have been Southwest Key and Baptist Child & Family Services. From 2008 to date, Southwest Key has received $1.39 billion in grant funding to operate shelters; Baptist Child & Family Services has received $942 million. International Educational Services also was a big recipient, landing more than $72 million in the last fiscal year before folding amid a series of complaints about the conditions in its shelters. The recipients of the money run the gamut from nonprofits, religious organizations and for-profit entities. They are essentially government contractors for the Health and Human Services Department - the federal agency that administers the program keeping immigrant children in custody. In a recently released report, the State Department decried the general principle of holding children in shelters, saying it makes them inherently vulnerable.