But Chapo’s greatest contribution to the evolving tradecraft of drug trafficking was one of those innovations that seem so logical in hindsight it’s a wonder nobody thought of it before: a tunnel. In the late 1980s, Chapo hired an architect to design an underground passageway from Mexico to the United States. What appeared to be a water faucet outside the home of a cartel attorney in the border town of Agua Prieta was in fact a secret lever that, when twisted, activated a hydraulic system that opened a hidden trapdoor underneath a pool table inside the house. The passage ran more than 200 feet, directly beneath the fortifications along the border, and emerged inside a warehouse the cartel owned in Douglas, Ariz. Chapo pronounced it “cool.”

When this new route was complete, Chapo instructed Martínez to call the Colombians. “Tell them to send all the drugs they can,” he said. As the deliveries multiplied, Sinaloa acquired a reputation for the miraculous speed with which it could push inventory across the border. “Before the planes were arriving back in Colombia on the return, the cocaine was already in Los Angeles,” Martínez marveled.

Eventually the tunnel was discovered, so Chapo shifted tactics once again, this time by going into the chili-pepper business. He opened a cannery in Guadalajara and began producing thousands of cans stamped “Comadre Jalapeños,” stuffing them with cocaine, then vacuum-sealing them and shipping them to Mexican-owned grocery stores in California. He sent drugs in the refrigeration units of tractor-trailers, in custom-made cavities in the bodies of cars and in truckloads of fish (which inspectors at a sweltering checkpoint might not want to detain for long). He sent drugs across the border on freight trains, to cartel warehouses in Los Angeles and Chicago, where rail spurs let the cars roll directly inside to unload. He sent drugs via FedEx.

But that tunnel into Douglas remains Chapo’s masterpiece, an emblem of his creative ingenuity. Twenty years on, the cartels are still burrowing under the border — more than a hundred tunnels have been discovered in the years since Chapo’s first. They are often ventilated and air-conditioned, and some feature trolley lines stretching up to a half-mile to accommodate the tonnage in transit.

The New York Times reports that Joaquín Guzmán Loera—leader of the Sinaloa Drug Cartel—has been arrested. Nicknamed El Chapo, Guzmán’s cocaine and marijuana trafficking empire is believed to be worth several billion dollars. Patrick Radden Keefe closely examined the Sinaloa Drug Cartel and Chapo’s leadership of the organization for The New York Times Magazine in the summer of 2012.

See also: “Inside the Incredible Booming Subterranean Marijuana Railroad.” (GQ, Jan. 12, 2014)

And: “The Narco Tunnels of Nogales.” (Businessweek, Aug. 2, 2012)

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Photo of elaborate cross-border drug smuggling tunnel discovered inside a warehouse near San Diego via Wikimedia Commons

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