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The network adds "an extensive environmental clean-up operation is being carried out by a reputable agency with the full co-operation of the Mexican authorities."

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The network adds "an extensive environmental clean-up operation is being carried out by a reputable agency with the full co-operation of the Mexican authorities."

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Though the pilots could have survived this test crash, scientists found that flying in first class would have been fatal. Passengers in the middle of the cabin might have suffered concussions and broken ankles, while those in the rear could have walked away. Experts emphasize that the fatalistic view of many airline passengers -- the belief that if a plane crashes, you're unlikely to survive -- ignores data that show the great majority of people in such incidents actually live.

"The chances are that if you're in a crash, you will survive," says Tom Barth, an investigator with the National Transportation Safety Board who studied the crash's impact on occupants of the plane.

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