crashes. and then later, the faa itself came out and said actually two things. there was some new information and evidence that apparently had been gathered on the ground in ethiopia, ntsb investigators are there, part of the teams helping out. and also, they refer to this satellite data. and essentially what this data shows is the upward motion of the aircraft. the ethiopian airline, from the moment it took off to the moment that it crashed. they took that kind of data track and they matched it up against the lion air flight, and what they found was that it was very, very similar. in fact, strikingly similar. so much so that the faa said given all that, it was best that they err on the side of precaution and become the last nation to declare that the flights, the planes would be grounded. >> thank you very much, martin. i want to go to bill mcgee, aviation adviser. bill, it's pretty frightening because they overlay those two