It’s too late. They’re already bound for refugee intake centers all across the US.
Some will meet up with the dormant AQ/IS cells set up as far back as when the Cigar Czar occupied the White House.
I predict that the WH will parade a few with "tragic stories and much gratitude to us" to show us how silly our fears/concerns are.
Then, when we do get hit, it will turn out that at least one of those paraded out will be intimately involved in the deal.