Malaysia Air Flight 370 is not the first high-tech jumbo jet to disappear mid-flight. Investigators have unraveled several previous aviation mysteries. Randi Kaye takes a look at how previous investigations may offer a blueprint for figuring out what happened to Flight 370.
John Hansman is a professor of aeronautics and astronautics at MIT.
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
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