(Hussein Malla | The Associated Press) In this Saturday, June 30, 2018, photo, Dahouk al-Omar, 68, an unregistered Syrian refugee, who is hoping she can join her son now resettled in U.S, Chicago state, leaves a catering business where she works as a cooker, in Tripoli, north Lebanon. The Trump administration travel ban has thrown yet another obstacle in the way of Syrian refugees whose status in neighboring countries is already extremely uncertain.