Yes one of the Paris attackers had a fake Syrian passport, but it is quite possible that person was yet another European national traveling back from Syria. Someone like that could never get a US refugee visa. Also the refugee process takes a year of vetting. If ISIS wanted to infiltrate the US it would it would be much faster, cheaper and easier to inspire/radicalize US citizens/residents and/or bring in European citizens/residents who have been trained in Syria/Iraq (who could get into the country on student or tourist visas).
But of course the right position for any GOPer running for president now will have to be to tap into the fear and be as bellicose and jingoistic as possible. That means calls for being the most anti-refugee as possible like how Chris Christie today said he would turn away a 3-year old orphan.
Top post.
Sums up my feelings on the disgusting spectacle we've witnessed today.