evaluations for people to get a pilot's license? are there any such things to begin with? >> you have your annual physical, flight physical. you can probably add a certain component to the physical but that's only once a year in which you have -- that's assuming that the flight surgeons who give the physicals are skilled in this area. i think it is an awful tough question. i think that -- i am not sure whether there's much more than is being done now. >> does it make any sense when you go to the private airports where there are a lot of private planes, no real security, they are going onboard. does it make sense to impose greater security at these private airports for private corporate jets, for example? >> i think that's been an issue debated since 9/11. the general aviation, business jet community, and -- put forth proposals. they i am letted some. i think that could be looked at again. i mean, the real question here is that was a destructive accident. was there any accelerants in the