CNN The Lead With Jake Tapper April 12, 2014 01:17:00
Through. help us understand what is going on here. >> the first thing they want to dies clear off all the other equipment. they don't want a bunch of other things to interfere with the sound as they bring in things like the towed pinger locator. this is the device that has recorded all four of the pings we considered before, that have been considered accurate. beyond that we have other possibilities. they have been deploying sonobuoys. these are actually designed to detect submarines. they have been modified to try to pick up pings here. one has been heard, and discounted. they don't believe i...
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