Reality being a matter of the compound of (real) emotions and the pragmatics of finding a place that would welcome such a potential problem, I have to say it is a fun idea that is unlikely to get anywhere-unless the U.S. takes over some new patch of land. I'd be all for sending them to some spot the U.S. "makes safe," say in Somalia or the Middle East. Heck, then we might not even need to have guards. The prisoners would need them, however.
Trying to update my sig ...