but they believe now that they have some information at least that indicates this plane may have flown up to four or five hours out into the indian ocean and that may provide the final answer about what happened to this flight. wolf? >> if it flew four or five hours after the transponders stopped transmitting signals back to ground station, it could have gone a lot further than the indian ocean, right? >> they have calculated at this point the range of the aircraft, based on the fuel that they thought would have been left from the last time they had communication with it. that's part of why they are looking there. there are also indications, wolf, that the satellite that picked up the pings, they have been able to do some calculations about where all of this came from. so the clues are not adding up