Detailed text transcripts for TV channel - MSNBC - 20150731:17:32:00
Identifying where the aircraft is at the present time. >> it does discount certain theories. nbc's sarah james is live for us in canberra australia. now this fragment has surfaced, how does it change their investigation? >> well, thomas one of the first things that i that they did when they learned the piece of debris was found was to rework their computer models. in other words they took account of the possibility that that this might be mh-370 and ran everything with an end point, if you will. what they discovered was interesting. they hadn't accounted for the wave pattern. they accounted fo...