International travelers, some wearing protective masks and gloves, wait in line before meeting with U.S. Customs and Border Protection Office of Field Operations officers to review their travel documents as they arrive at Dulles International Airport in Dulles, Va., March 18, 2020.
In response to the coronavirus pandemic, CBP officers have donned personal protective equipment (PPE) as they work on the frontline of the crisis. CBP Photo by Glenn Fawcett. Original public domain image from Flickr