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We have completely lost sight of the northern arc. once the malaysian prime minister made the famous 10:00 p.m. announcement that they determined it was the south, we really stopped looking at the north all together. i heard that malaysia had asked kazakhstan if they could set up a search facility up there. i haven't heard back about it. so, great question. >> mary, question from dale. it says why not drop pinger in area to calibrate detected pings. we know the ocean can play tricks on sounds. should they put a pinger down to see how pings are manipulated in that part of the ocean? >> absolute...

Route even searched their own territory? >> wow, that's a great question. we have completely lost sight of the northern arc. once the malaysian prime minister made the famous 10:00 p.m. announcement that they determined it was the south, we really stopped looking at the north all together. i heard that malaysia had asked kazakhstan if they could set up a search facility up there. i haven't heard back about it. so, great question. >> mary, question from dale. it says why not drop pinger in area to calibrate detected pings. we know the ocean can play tricks on sounds. should they put a pinger do...