cost out there sort of thing to do. why has that not happened? >> those are things as i think we move into the future they are talking about 90-day batteries that may be able to give off signals. also the potential there would be streaming, that would be targeted to be normal until there's an anomaly at which point in time as soon as the plane goes off the charted course it gives you more information. this is the kind of thing that's capable to be done through satellite technology but we're not there yet in the form of utilizing it in that way. >> so, the other thing that i learned and we relearn these things when we have these unfortunate tragedies happen and that is that the flight recording of what's going -- what's being said inside the cockpit actually only picks up the final two hours before landing or crash. what about constant? what would be wrong with that?