Not that I have any voice in how we handle refugees, but if I were King, I would welcome refugees only for the purposes of escaping religious persecution, and orphans under the age of 12. Yes that would include Christians and other lesser religions of the embattled region, that would mark one for extermination by ISIS. Who would not be included would be unmarried men of fighting age – who in my opinion should be joining coalition forces to take back the region from ISIS.
Then out of those who do qualify, a comprehensive screening process, and registration including photo ID, Finger Printing, and DNA. And they would have to have a U.S. Citizen or organization such as a church sponsor them while they are here.