i love it. >> thank you. >> first of all, before we get into that, radar for dummies. real quick. >> real quick. so your viewers can do this at home. get a flashlight, get a swivel chair. turn off the lights, put the flashlight on your head and spin around. what the flashlight bounces off of is what the radar seize. >> our perception of radar in the modern age is that it's sophisticated enough, it's on the border of all these countries, that it can see a pigeon flying into their airspace. that's probably an exaggeration. >> that would be. assuming the pigeon is close enough, maybe you can see one. >> what about a 777, could it fly over china into kazakhstan without being noticed? how would that have to happen? >> anything like this is possible, but to do it you'd have to have very detailed information of the type of radars, their disposition, their heights and their wayiforms to pull that off. >> so it would be like a video game.