Alana Wise

The administration said people from 19 countries would face additional scrutiny.

That includes people who hold green cards.

Trump ran for office on a promise to stop crime.

including illegal immigration.

The two service members who were shot in D.C., one of whom has died, were in the nation's capital at the president's order to help curb crime in the city.

Prior to their deployment, violent crime in D.C.

had hit a 30-year low.

Alana Wise, NPR News, Washington.