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File photo: The missing Malaysia Airlines 777 airliner, photographed in Australia in 2010.
File photo: The missing Malaysia Airlines 777 airliner, photographed in Australia in 2010.

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    What's behind the disappearance of MH370?

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What's behind the disappearance of MH370?

What's behind the disappearance of MH370?

CNN's Sara Sidner looks at the theories behind the disappearance of Malaysian Airlines Flight MH370.