states from seven muslim majority countries. we re tracking that this hour and also the issue of who will pay for the wall. president trump wants to build along the u.s./mexico border remains unresolved now. we want to show the reality of what s happening along the southern border. pard three of ed lavendera s report on the wall. he got access to a han underground network of drug-smuggling tunnels, that exist from mexico right underneath the border into the u.s. for years the vigilance along the u.s. southern border has been growing. hundreds of miles of fencing, border patrol agents criss-crossing the remote terrains and urban streets. ground centers and high-powered cameras keep constant watch. but now smugglers go where the cameras and eyes can t see them. we are in a tunnel underneath otai mesa, california, south of san diego. on the border with tijuana,