That's a very big question. We grappled with this when we wrote the report, because any one of those options that are identified requires really detailed analysis.
I can tell you quickly what my ideal solution is. The ideal is to gradually expand NORAD, at a minimum to provide all the main awareness for land, sea, air, space, and potentially cyber—I'm not good on cyber—so that you have all-domain awareness, and then leave the responses, except air, because it's already been in place, to national and bilateral approaches.
That, I think, is something that will be driven by the variety of events in the Arctic and elsewhere and the nature of the threat environment. I think it drives both Canada and the United States down that path, and it deals with the political problems of sovereignty that exist not only on this side of the border but on the other side of the border as well. We always think that somehow the United States is out to take us over or control us, but the Americans have as much concern about the nature of cooperation at the end of the day, of binationalism relative to their nationalist agenda, as we do.