Mohammad Sharafoddin, his wife and young son managed to make it out of Afghanistan as refugees nine years ago, at one point walking 36 hours in a row over mountain passes.

President Trump on Wednesday signed a travel ban on 12 countries, primarily in Africa and the Middle East, reviving an effort from his first term to prevent large numbers of immigrants and visitors from entering the United States.

U.S. President Donald Trump signed a proclamation on Wednesday banning the citizens of 12 countries from entering the United States, saying the move was needed to protect against "foreign terrorists" and other security threats.