After an Afghan national was charged with shooting two National Guard members in Washington DC, President Donald Trump called for sweeping changes in immigration policy and pledged to "permanently pause migration" from all "third world countries".

Afghan nationals, especially those who worked with the US mission in Afghanistan, may now find themselves in a particularly precarious position. Asma and Tristan discuss these rapid recent policy changes, and the BBC’s Mahfouz Zubaide shares recent reporting on how Afghans in America are getting caught up in the crackdown.

Producers: Viv Jones, Xandra Ellin

Executive Producer: Bridget Harney

Senior News Editor: China Collins

Mix: Marty Peralta

Photo: People leave flowers at the scene where two National Guard members were shot in Washington DC. Credit: Will Oliver/EPA/Shutterstock