I recommend a nice cozy, remote spot like, say...The North Slope of Alaska.
Good idea. Put'em to work building a pipeline from ANWAR. No fences, no walls, no guards. Just send a C-130 over every day or so. If they've laid enough new pipe, he drops a couple of day's food supply. No new pipe, no food! Any body wants to leave, fine. The nearest outpost is 500 miles that-a-way over those snow mountains. By the way, watch out for the Polar Bears; They're hungry and in a foul mood. And the outpost is armed and doesn't like mooselimbs.