Experts: 'Nothing amateur' about narco submarine

The only narco submarine ever captured — a 73-foot-long camouflaged vessel capable of carrying at least 7 tons of cocaine while cruising stealthily beneath the ocean's surface — sits raised on concrete blocks in a South American seaport.

Its belly is caked with grime. Its hatch is open.

Many of its secrets are no more.

In the seven months since the game-changing discovery of the submarine, built by drug traffickers in a covert shipyard deep in the Ecuadorean jungle, naval experts from multiple countries have studied the vessel.

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