you, they upgrade the aircraft s position every 4.4 seconds. the satellite systems would aircraft the aircraft continuously. and the more precise information would allow controllers to better control aircraft in the air. satellites can also cover areas where radar is limited, such as over the gulf of mexico, as well as in mountain valleys. so naturally, brooke, the question is, could this sort of satellite tracking system prevent a plane from disappearing, like malaysia flight 370. we ve been asking experts this all day. and i have to tell you, it is very unclear, and uncertain, even with the upgrade, we do know that the planes would still have transponders. if someone disabled the transponder which is alleged to have happened in flight 370, one aviation facility told me the satellite would lose its ability to track the plane. however, there are others in the industry who say antennas would make it possible for satellite to continue tracking the plane, even if the transponder is off.