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ac elam hydrophones_00002504.jpg
ac elam hydrophones_00002504.jpg

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    High tech ears listen for Flight 370

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High tech ears listen for Flight 370

CNN's Stephanie Elam demonstrates the hydrophone listening for Flight 370's black box pings.

High tech ears listen for Flight 370

CNN's Stephanie Elam demonstrates the hydrophone listening for Flight 370's black box pings.