After extremist attacks in Europe, the United States will tighten security procedures for its visa waiver programme for visitors from friendly countries, officials said on Monday.
The United States already screens visa applicants from war zones carefully, but will now ask more questions of travelers from countries eligible for visa waivers.
Washington will also seek greater cooperation and intelligence sharing with allied countries to try to intercept “foreign fighters” returning from places like Syria.
This month’s deadly attacks in Paris are thought to have been the work of European Muslims trained and radicalized by the Islamic State group in its Syrian and Iraqi bases.