Yes, I think one of the points to make about the JSF program is that it has been almost universally controversial within all the partner countries that are participating in the program. As you mentioned, in the U.S. alone there's been a lot of debate about the rising costs of the aircraft program, and some doubt as to what the final costs will actually be. The GAO report you mentioned leaves open what the final costs may eventually be.
In terms of the partner countries and the extent to which they have now committed to the program, based on my review of a number of periodicals and industry articles that have referred to the program, we know, for example, the Netherlands, in August of this year, said it will not make a decision on the purchase of the joint strike fighter until after the next election, which is expected in 2014.
Norway has said it will not sign a contract until it is assured that the aircraft will be available at the lowest price, which isn't clearly defined but is presumably lower than what is expected at the moment.
Denmark, in March of this year, delayed its decision on acquisition because of rising costs, and the government there is saying it's waiting for costs to stabilize.
Meanwhile, we also know there's a major defence review going on in the U.K. We don't know the outcome of that review, but The Economist already has suggested, in an article last week, that it might result in the order for JSF aircraft being halved.
In Italy, there are federal budget cuts under way. The suggestion there is that there is a fairly basic commitment to the JSF program, but again the numbers are unknown.
All of that is to say there is still considerable doubt around how the partners are going to be committed to this program.