SECRET DRUG TUNNEL CROSSING U.S.-MEXICO BORDER FILLED WITH CONCRETE
The U.S. Border Patrol ordered concrete slurry filling the opening of a drug tunnel stretching four football fields in length that was discovered in November 2011. Agents seized more than 14 tons of marijuana when they discovered this tunnel running underneath the U.S.-Mexico border between warehouses in Tijuana and Otay Mesa industrial park in San Diego, CA. Tunnels are entirely filled and rendered unusable once they are no longer needed by investigators – it is expected to take anywhere from four to eight days.