With respect to the Baltic air policing, I think it's important to recognize that the territory of Russia is not contiguous, but that there is a small island of territory called Kaliningrad, located astride the Baltic states. In flying between its territory Russia flies along the boundaries within the Baltic and does so quite regularly. So the interception of Russian aircraft in the Baltic context is quite normal activity that NATO has seen and, I think, and is treated as such when Russian aircraft travel between two different areas that aren't contiguous. We see mostly transport aircraft.
If you were asking about NORAD's concern, we've seen a mixture. But those are typically Bear-H aircraft, their front-line bomber aircraft, that have traditionally approached Canada's northern area and NORAD. That's the main concern.