Are you familiar with the current resettlement screening process? It’s extremely thorough. If at any point in the process there’s any doubt that a person is dangerous, they’re automatically denied entry to the U.S.—there are plenty of other refugees in line behind them. Don’t forget the EO also reduces the number of resettlement spots from 110,000 to 50,000 and prioritizes minority religions in the countries affected by the ban, in effect sending the message that one’s religion is more important than their need. None of this actually helps refugees, and it doesn’t make us any safer than we already were. He acted carelessly on a nonexistent problem.