U.S. Border Protection Working in Overseas Airports
Sections of foreign airports are being carved out for the Department of Homeland Security, and passengers there are screened for explosives and cleared to enter the U.S. by American Customs and Border Protection officers before boarding their U.S.-bound planes, according to an article from the New York Times.
When those passengers land in the U.S., they can walk straight off the plane into the terminal without going through border checks, the article says.