NBC November 13, 2018 5:26 pm Marines Fortify San Ysidro Border Ahead of Caravan Marines installed barb wire and cement blocks near the San Ysidro border as hundreds of migrants arrive in Tijuana. NBC 7’s Bridget Naso has more. US & World Videos 3:42 USS Carl Vinson returns to San Diego after deployment 28:47 American Vets: Benefits, Race and Inequality 3:24 Beyond the battlefield: A salute to service for a local veteran 26:59 American Vets: Benefits. Race & Inequality 3:00 Why Was This Popular Web Cam Overlooking San Diego Bay Shut Off?