Better screening? From who? For all practical purposes there is no way to determine the legitimate refugees from the terrorists.
Any attempt at screening is a joke.
Who are you going to ask about them? The local Goat-Humper police department? How is their credibility looking?
Even if you try to do it yourself, consider the fungible nature of Muslim names.....
“So you want to know about Ikrub al Nagreebi bin Muhammed? Oh I don’t know. Oh, you mean Ikrub al Hagribi ibn Muhammed..., Oh HE’s right over there. And he’s OK, we promise”...
Hey - cut them some slack. The screening process is almost as accurate as the TSA's work - and they only have a 95% failure rate.........