Thank you.
I'm going to change a bit to the discussion about the west coast. Based on some of the information that we obtained, NORAD has identified that since 2001 and the 2001 terrorist attacks, there were more than 3,500 possible air threats intercepted, which involved more than 1,400 aircraft in airspace in Canada and the U.S.
You talked a bit about NORAD and equal partners between Canada and the States. The U.S., on a number of occasions, has sent or scrambled jets to intercept. They've come to Canada's defence, so to speak. I imagine a lot of that has to do with the fact that we would scramble from Cold Lake and that the commute is quite far.
We're depending quite a bit on the U.S. to defend us. I'm curious to hear if you can comment on this. How many times have we scrambled to defend the States likewise? How often does that happen?