stock. it's a needle in a field full of haystacks. the search areas doubled in the last day which is not the direction it should be going in. this is what's unusual about this situation, usually the stage in an aircraft investigation, they have a lot more to go on. even with air france, they knew within a few days more or less where they had been. this is really unprecedented. >> is that specifically because the transponder for whatever reason stopped tran pond issing? >> yes, and he don't know why that happened. i think the real question now is, why are we still relying on 1960s era technology to find this? basically it boils down now to a search for the black boxes that contain really what will be the most important bit of information in sorting out what happened to this.