CNN The Don Lemon Show April 1, 2014 05:28:00
Advanced surveillance aircraft in the world. >> if there is wreckage to be found it would pick that up. >> reporter: the ships report back to the uss blue ridge. no surface ships are in the search area. but the navy has this towed pinger locator. it is en route to the search zone. it is designed to listen for the black box's pinging beacon. also on board, this autonomous underwater vehicle or uav which scans the ocean floor for debris. but it will only be useful once the investigators have identified a crash site and debris field. boeing, the u.s. national transportation safety board, the
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