crash, b is going to have the answers. 737 max. it has the newest models of black boxes. records approximately 1,000 lines of data from different parts of the aircraft, instruments, the speed, everything about the aircraft and the cockpit voice recording is 25 hours long so they would have prior flights on it as well. so that will be the ntsb's primary interest and obviously boeing's on its way, too, and it's a big issue for boeing. this is the second one related to this controller system, it's trouble. >> and so on that note, mary, because the specific model of airliner, again, it's the boeing 737 max 8. a new aircraft for boeing. an identical model that crashed just a few months ago back in october in indonesia. i mean, what does your gut tell you, is this coincidence or could there be an issue with this model of airliner? >> well, an air crash investigation, there really is no coincidence.