This photo released Tuesday, March 31 2020, by the San Diego Tunnel Task Force, Department of Homeland Security, shows a rail system in a cross-border tunnel running from warehouses in Tijuana, Mexico to San Diego. U.S. authorities seized a large haul of drugs including opioids, methamphetamine and cocaine, being smuggled through the tunnel equipped with ventilation, lighting and an underground rail system. Authorities believe it existed for several months. (San Diego Tunnel Task Force/Department of Homeland Security via AP)