Secret Tunnels from Mexico to the U.S. for Smuggling Drugs, Guns, and People
Some are 'gopher holes', others have electricity, lights -- even elevators.

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Since 1990, law enforcement has found at least 115 tunnels underneath the U.S.-Mexico border. The tunnels are used for smuggling drugs, money, weapons and human beings. Only 11 of the tunnels were discovered before 9/11. Most have been discovered since 2001, after the U.S. stepped up border security. The most recent tunnel to be discovered, shown here, was found on March 12 in Tijuana southeast of the Otay Mesa border checkpoint. (U.S. Immigration and Customs Enforcement )



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