i want to bring back matthew wald, mary schiavo, tim taylor les abend. pilots are trained to navigate severe thunderstorms, correct? >> correct. at this particular time they would have been utilizing a very sophisticated form of radar, on board radar, looking at it would have been color radar, we would have been looking at green, yellow, red being the most intense. we do -- probably had cells that did go up to 50,000 feet. the thunderstorm consists of a lot of cells. especially something as big and as immense an area that that was in. but not every area not every cell would have gone up to 50,000 feet. so it would have been possible to navigate at least around it if not at least possibly above some of them. we don't know what the pilots were seeing at that particular time. >> mary, you know we sit on runways, we sit in the airport and we complain we say it's just a little thunderstorm little shower. but in the united states with a system like that thunderstorms, a weather system would that flight have been canceled? >> i think it would have. and because