Right now my office is busy working up cases on "dreamers" because their "American Dream" includes drug trafficking and fraudulent document trafficking. Don't even get me started on the child prostitution rings.
I have no idea what DHS's numbers are, but the relevant subcommittees in both the House and Senate should have been notified of any major reprogramming, and ultimately the Congress would have to approve an expansion. Unless it is entirely lawless ... not that I expect the courts to enforce anything againt this crowd.