The Syrian refugees are simply too high risk a group to accept en masse without logical precautions.
They need to be seqeuestered for 6 months to a year before being allowed into the host country. Preferably on an isolated island miles from any mainland. All of them.
This is a Brutal New World. Time to shake off the old culture of niceties.
Now whether Syrian immigrants should be allowed is another discussion unto itself, but for now, it appears simpering leaders around the world have bent over in rapt desire to let their countries be butt-fucked by the Swarm, so let us indulge in some…pragmatism.