How about offering a quid pro to the terrorists. If they will insure that the U.S. proper will never again be hit by them in any manner, we will allow the ROP and its adherents now in country to remain here so long as they assimilate and stop pushing for their sharia crap and special consideration above and beyond what any other religion in America gets for their religious needs. But no more immigrants from the religion of pieces.
If not, deport 'em all immediately following the next terrorist attack for their own safety. Their call.
Nope - we never negotiate with terrorists - as for the assimilation part of terrorists already here, I'm open to suggestions.