there was a vortex from a boeing 747 that took off before it and apparently the co-pilot yanked the yoke too much to one side and the tail late lititerally fell off. do you think there's a problem number one -- we're looking now at the scene of the american airlines flight that crashed in queens just after takeoff. two questions, john. number one, are we dealing with crews that even though they have thousands and thousands of hours of flying time, they rely too much on the computerized systems. number two, is there an issue with the composite materials of these airbus which is they went away from aluminum fuselage and metal into this glue type composite that could potentially break apart in mid air? >> well, as you call them the blue comeposites have proven to be very strong.