Drug Cartels' Secret Weapon

Vessels called submersibles are moving huge amounts of cocaine to U.S. streets.

Submersibles: Drug Cartels' Secret Weapon

War On Drugs
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Rear Adm. Nimmich told ABC News the submersibles are neither the most comfortable nor the safest.

"The folks that run them are taking their lives in their hands," he said.

This is the view from inside one submersible looking out the portholes. (ABC News)

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