Five key human errors, colossal mechanical failure led to fatal Gulf oil rig blowout. A string of mistakes, first by people, then by a supposedly fail-safe machine, sealed the fates of 11 rig workers and led to the fouling of the Gulf of Mexico and hundreds of miles of its coastline. New Orleans Times-Picayune, Louisiana.Even when they acknowledged limited risks, they seemed to consider each danger in a vacuum, never thinking the combination of bad choices would add up to a total well blowout.
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