Okay, thank you. That's helpful.
The other question that keeps coming up, particularly with respect to the F-35, is the military profile of Canada as a nation, and particularly as it relates to stealth. The question becomes why Canada needs stealth, because we generally don't lead missions. Even in Libya, we didn't lead the mission. It's usually the Americans or the British who lead the mission, so one can see the argument for the U.S. needing stealth, and possibly Great Britain, but for Canada and our military profile, why has stealth become such an important element?