ANOTHER HOMEMADE SUBMARINE CAUGHT BY COAST GUARD

A self-propelled, semi-submersible craft was seized Saturday, Sept. 13, 2008. The craft was seized by Coast Guard law enforcement detachment 404 during a joint operation with the USS McInerney in the Eastern Pacific Ocean. The SPSS was carrying seven tons of cocaine worth an estimated $187 million. The vessel can also travel from Ecuador to San Diego, California, without having to stop for replenishment.

This was one carrying drugs. You have to think some of these are carrying worse than drugs. It's a grainy video, but worth the watch.