high cost of streaming live data, especially video from the cockpit. but the real issue in this case was all the systems on board the aircraft already stopped transmitting. i think what the regulators will do after this is look at this and figure out how to foolproof those systems so that transponder can't just stop working, the data messaging system can't stop working -- >> so sort of pilot proof? >> right. >> equipment. >> the. i lot has to have some authority to turn off the electrical systems in case they overheat. there's a way you can put a small back up battery, embed that in some of these systems. you can install additional systems that do more to help us narrow the search area when something like this happens. >> how about a battery inside the data boxes that last more than 30 days. that doesn't seem like a high