With the 747s and dealing in that environment in the same way following the same rules. >> has there been a case when you haven't got ahold of an air traffic controller? >> yeah, it happens every now and then. usually what happens is in the course of a flight -- i was flying in that case the day before yesterday from washington all the way here to chicago with a stop in pittsburgh. about every 10 or 15 minutes as you pass over ground radio stations going back to the notion of a ground-based system. you get handed off from controller to controller. every now and then things get lost in the hand...