Could I interject here?
Let's be clear on one thing. We don't know what the costs are or what the Americans would require from us at this point. In other words, if we start saying that we're drawing away substantial resources for a price tag for participation, that may or may not be the case.
We are moving ahead, as has been mentioned, with the renewal of NORAD, so it's entirely conceivable that if we were the ones to initiate some form of participation within the American ABM system we might be able to negotiate it in that context, because we are going to have to take some very expensive internal moves for the modernization of the north warning system and satellite systems that the Liberal defence policy says we are going to be doing.
In this context, I want to put a brake on the assumption that it's as though if we do ABM with the Americans it's going to cost us a whole lot of money. They may have a price tag; with Donald Trump as President, who knows? On the other hand, though, given the fact that we can see clearly the way the threat has been developing, to ensure that we have some form of participation—it will be junior, and it's silly to think it's going to be anything but junior participation—we want to lock ourselves in for that possibility. As I said earlier, if the North Koreans start getting into the situation that they can start overwhelming the system, we want to make sure we are involved at least in some part so that the Americans are thinking of us in a crisis situation. I think that's really what we're trying to get ourselves involved with at this point in time.