U.S. authorities seized another cross-border tunnel, this time in San Diego, just weeks after a similar tunnel was uncovered in Calexico, Calif., a two-hour drive to the east. The 874-yard-long tunnel was uncovered, on Wednesday, after a months-long investigation, authorities said. The tunnel was equipped with a rail system, lighting, a ventilation system, and even a commercial elevator on the Mexico-side that could fit up to ten people, authorities said. Laura Duffy, U.S. attorney for the Southern District of California, said the tunnel was “a bit ingenuous” and “completely different” than any of the tunnels her office had seen before....