CNN reports:
Donald Trump first introduced the idea of a Muslim travel ban in December 2015, shortly after Syed Rizwan Farook and his wife, Tashfeen Malik, shot and killed 14 people in San Bernardino, California. But President Trump’s executive order temporarily banning all refugees and suspending travelers from seven Muslim-majority countries would not have applied to either Farook or Malik.
Nor would the travel ban have affected the perpetrators of any of the major Islamic terrorist attacks on American soil in recent years.
No person accepted to the United States as a refugee, Syrian or otherwise, has been implicated in a major fatal terrorist attack since the Refugee Act of 1980 set up systematic procedures for accepting refugees into the United States, according to an analysis of terrorism immigration risks by the Cato Institute.