When federal agents busted a trailer loaded with tons of marijuana, little did they know that the haul would lead them to one of the most high-tech smuggling tunnels they had ever seen. Indeed, its scale and complexity were undeniably impressive.
After 9/11, at a time of heightened security, a specialist taskforce was assembled to crack down on underground drug smuggling between the U.S. and Mexico. The formidable team included officers from Immigration and Customs Enforcement (ICE), Border Patrol, the Drug Enforcement Administration (DEA) and Mexican authorities.
Furthermore, in November 2010 the squad had its biggest victory to date. After a month spent tracking suspicious activities at a warehouse in the Otay Mesa neighborhood of San Diego, just across from Tijuana on the Mexican side of the border, the team swooped. And what they discovered was mind-blowing.