cockpit? you know a lot about signaling and correct standards used. apparently it was all right, good night. there have been some reports that would have been roger and out. >> if you listen to air traffic control radio, you fly from new york to chicago, you'll be talking to new york controllers at some point they'll hand you off to cleveland center. the way it will go, the new york controller will say, malaysia 123 contact cleveland at 126.5 and usually something like good day or have a great day or thanks, be well. >> when you get into the zone talking about this stuff, lester. >> that was not unusual. what's unusual is that this is said, the point between malaysia and vietnam, which is not a no man's land but a handoff point and these things are disabled around the same time. >> explain the significance of that. they carefully chose a spot between air spaces, right to bring this all down. >> there's a handoff point where you're going out of malaysian coverage or going into vietnam's coverage. and typically the controllers