plane. but as doug mckelway just reported, no wreckage discovered yet. still so many open questions, not the least of which, jenna and john, the we of when this good night communication was made by it pilot, before, after or during that left-hand turn. that is question you've been thinking about a lot, jon. jon: yeah, because if the pilot said good night and turned could have been a problem in the cockpit. but if they already turned before the pilot said good night it suggestion they were aware that they were off course. >> reporter: at some point we hope we get definitive questions. jon: strange story. jenna: jonathan, thank you. jon: with more on the search for the missing jetliner, let's bring in kenneth button, george mason university center for emergency operations and logistics. you have testified before congress about air transportation issues. you like so many of us are vitally interested in this case. based, on what we know now, no