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Field so the process of salvaging as much of the plane can begin. and brianna, it is a very slow process, to say the least. what they have to do they call it mowing the lawn. over the search area they go back and forth, slowly over it over it and over again so they can build up this image and increase it so they can find the debris field and hopefully, hopefully locate this plane. >> yeah that is a lot of work. stephanie elam thank you so much. with us now, cnn analyst david gallo who helped dis...