I really,  really,  believe that Homeland Security cannot vet the number of proposed refugees that the Obama administration is talking about in the time available.

In 2015, one month prior the  San Bernadino debacle a HS spokesman said: "the U.S. refuge application process  takes 18-24 months. He said the U.S. vetting process includes an initial screening by the office of the U.N. High Commissioner for Refugees, security checks by the both the U.S. Department of State and the U.S. Department of Homeland Security, a medical screening, an in-person interview, and additional security vetting for young Syrian and Iraqi males."

As of November 2015  "governors in at least 17 states have moved to suspend or restrict the refugee resettlement, including Alabama, Arizona, Arkansas, Florida, Georgia,  Illinois, Indiana, Iowa, Kansas, Louisiana, Massachusetts, Michigan, Mississippi, North Carolina, Ohio, Texas and Wisconsin."

No doubt all of them are Muslim hating conservatives...or maybe not.