So why was that news?
At least half a million barrels of oil and drilling fluids had been spilled offshore before the gusher that began after the April 20 explosion, according to government records. Much more than that has been spilled from pipelines, vessel traffic and wells in state waters -- including hundreds of spills in Louisiana alone -- records show, some of it since April 20.Runoff and waste from cornfields, sewage plants, golf courses and oil-stained parking lots drain into the Mississippi River from vast swaths of the United States, and then flow down to the gulf, creating a zone of lifeless water the size of Lake Ontario just off the coast of Louisiana. The gulf's floor is littered with bombs, chemical weapons and other ordnance dumped in the middle of last century, even in areas busy with drilling, and miles outside of designated dumping zones, according to experts who work on deepwater hazard surveys.
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