Sophisticated solar powered 'drug smuggling' tunnel from Mexico discovered

A sophisticated solar-powered tunnel has been found at the U.S.-Mexico border in Jacumba The tunnel reached into U.S. land but stopped 15 feet short of the surface The tunnel was over 600 feet long, and 3 feet wide Over 200 tunnels have been found at the border since 1990 Solar panels powered drainage pumps and lighting and a rail track ran the length of the construction