CNN CNN Newsroom March 15, 2014 18:38:00
United states, sometimes you get a pleasant good night, good-bye, good morning, sometimes you don't. >> now given that, would the expectation be that this pilot would then say, hello, to the next airspace, like you said? ho chi minh and if that takes place who would have than kind of recording or data reflecting that that conversation may have happened? >> well, that's the -- that's a very, very interesting point. because the next -- very often you know about a plane incident or a plane accident certainly with air france 447, many of them, we knew about this, because the next person doesn't he...