sot.myers.mariana.trench_00011629
sot.myers.mariana.trench_00011629

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    How deep is the Mariana trench?

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How deep is the Mariana trench?

CNN's Chad Myers looks at how deep the Mariana trench is ahead of the dive director James Cameron is about to embark on.

How deep is the Mariana trench?

CNN's Chad Myers looks at how deep the Mariana trench is ahead of the dive director James Cameron is about to embark on.