>> richard, let me ask you just to explain. you said that there's much better acars in this case as opposed to flight 370. what exactly do you mean by that? >> the aircraft advisory and reporting system. this is the computer. this is the way in which -- think of it as bluetooth. you know, the plane is constantly discoverable. the plane is constantly sending out information to the ground. and this aircraft -- remember, with mh-370 the acars were disabled, or switched off, or something happened to the acars that meant it no longer gave information. the transponder was switched off. it no longer gave information. the odds of this happening in this case are fantastical. it's just not likely. so when request what we are likely to have is depending on the position of flight, it was over a way-point at the time, we