This is extremely important to us, and of course this is what NORAD is all about, having that binational agreement between the United States and Canada, and therefore we have to have the same tactics, techniques, and procedures. We do train together, we do fly the same way, and of course we're talking to each other on a daily basis. We also share information back and forth, but as we go from one border to another, we have to be able to do that. We can't just go to the edge of Alaska or the edge of continental United States, as we're following a track of interest, and stop. We coordinate with the Americans in that case, and we will continue on, and we may be replaced later on or follow that track all the way to its final destination. The same is true for the Americans. They will come and coordinate with us. It's one big coordinated entity working together.