plane, how easy would it be to land a plane like that, given the wide area it could have landed, without any radar detection? >> well, i think if you get low enough you don't worry about radar. you can fly this thing on what we call map of the earth where you're right down on the deck. could this cap have done that? i don't know. but i would love to see the authorities get into his home and download whatever is left on his simulator. because that's a very sophisticated simulator. and he may have done a lot of practice. it would take a lot of skill and practice to bring that airplane that low in that kind of altitude to skirt around and go where he's going. let me quickly also say something about the pings. yes, absolutely right. i'm glad that somebody mentioned that. the ping is a sound that was designed to give you the indication that you have something underwater. the thing that we've been calling pings here today really are like text messages that come