necessarily lengthy, the faa only wants to put these kinds of devices on aircraft after they're fully vetted. and the implementation path for the total adsb network is required in all aircraft by 2020. >> can the adsb that you're describing be dismantled? if someone who's a bad actor wishes to shut it down, do they have the opportunity to do so? >> i think that's up to the faa. i see no reason at all why the system which we use couldn't be hard wired so it could not be shut down from the cockpit if in fact thats with a the problem in 370. >> is there any opposition to the programming methodology that you're describing from the pilots? i ask that question because i previously advocated the realtime transmission of cockpit data. i know that raises privacy concerns. they would have no issue with what you're describing? >> i have never heard that the pilots unit had -- pilots union