The argument about whether to let refugees in or not would benefit from knowing what our current process is. There's already an extensive, invasive, and extremely onerous process refugees have to go through:
It takes anywhere from 18–24 months for a Syrian refugee to be cleared to live in the United States. First he or she must be registered with the U.N. High Commissioner for Refugees. This agency interviews refugees, conducts background checks, takes their biometric data, and establishes whether they belong to one of roughly 45 “categories of concern” given their past lives and work history in Syria. Typically, the applicants are women and children. If anything looks amiss, they are pulled from consideration. Then the U.S. government begins its own vetting. The applicants are interviewed again, and their names and particulars are run through terrorism databases. They receive additional screening when they arrive in the United States and then again after their first year in the country.
This process has led to slightly more than 1,800 Syrians being admitted to the United States since 2011. None of them has landed in Alabama, but if that ever did happen, no one will ever have gone through a more painstaking and extensive vetting process where the reward was to live in Alabama.