Australia Will Soon Deploy Undersea Robot in Hunt for MH370

They've been searching by air and on the surface of the ocean, but now the teams looking for the missing malaysia airlines plane are getting ready to search underwater. Searchers are confident they know the general location of the plane—based on acoustic signals detected earlier this month. But the head of the agency supervising the search says there have been no further signals—or pings—since last week, so it's time to send an underwater vehicle to take a look.

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