AdvertisementSouthern Border Wall: Campaign Slogan Meets RealityJanuary 23, 2017John BurnettfacebookEmailThis fence, made of circa-Vietnam War era surplus landing mats, ends at Otay Mesa about 15 miles east of the Pacific Ocean. Tijuana is on the left and California on the right. There are two other kinds of fencing along the U.S.-Mexico border: steel mesh and concrete-filled steel beams. (NPR)