turbulence. zero g. occasionally flying about the cabin. not that often but styles it happens. then you burst into the center and it is just as calm as standing in the studio. i assure you. that's how flat it is. a magnificent sight. it makes you sick to think that it is heading into the direction of populated areas. >> right. >> reporter: and asking people to always pay attention to their emergency management. >> 100%. we all hope we're wrong. we all hope the estimates, all the guesswork is exaggerated. you have to prepare for the worst. and just to remind people, the kind of men and women who do this work for the rest us, you heard jack casually go past the