On the mixed fleet thing, because we're talking about that quite a lot, and you mentioned that cost is not your part of the ship, but I know you have a lot of experience in these kinds of areas.... I'll just make a statement and ask for a comment.
When we bought the F-18, we looked at various mixed fleets, and it was our conclusion that a mixed fleet of the two cheapest airplanes in that competition would be more expensive than a single fleet of the most expensive airplane in that competition, because it related to spares and test equipment and support equipment and training, publications--all those things that would have to be considered with a mixed fleet. If you were doing a study and it included a cost on mixed fleet versus single fleet, would those be similar things that would obviously have to be looked at?