Double hulls on tankers are required in U.S. waters as a result of the Exxon Valdez grounding (Oil Pollution Act of 1990). 99.9% of all of these spills you hear about are not from American ships, they're foriegn flag ships. I haven't followed the story, but I'd bet this one is not an American ship. Some of these ships I wouldn't set foot on if they were tied to the dock, but they're sailing them all over the world. That's the real problem here. The US flagged ships generally have well trained crews, and are well maintained. Unfortunately there's less and less U.S. flagged ships out there every year. Quality and safety in cost $$$, most companies look for the cheapest way to get the product from point A to point B.
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