In a private 2013 speech, Hillary Clinton worried about the risk of “jihadists” entering Jordan with “legitimate refugees” because “they can’t possibly vet all those refugees.” Clinton today wants to increase the amount of Syrian refugees the United States takes in by 55,000 annually. She believes that the U.S. refugee screening process is comprehensive enough to catch potential jihadists trying to enter the country, though FBI Director James Comey has said that the vetting process is severely limited by a lack of available data. “So I think you’re right to have gone to the places that you visited because there’s...