they're seeming to find here from satellite, is the debris here, the potential plane that, credible enough to discount the search areas that we were looking at prior to today? >> reporter: well, to the point that australian officials were asked a similar question said they are really shifting most of their focus to this area. so they seem relatively confident that there is a high likelihood this could be debris from the aircraft and a lot of that has to do with the perceived size. they think it's about 80 feet or so, which may be consistent with wreckage from an airliner the size of a boeing 777, and the location. this is really striking. this was kind of the extreme southern route of the possible path of that airliner based on the final satellite pings received. so it's kind of consistents with a possible position, at least. then the question is, if that's where the wreckage is, where would the actual airliner be? for that, they're going to have to figure out not just ocean currents, but also wind speed. all of this raises the question