The Afghan-Pakistani border is a very difficult issue. I know that at the political level, ministers of more than one ministry of the Government of Canada have done what ministers do, in terms of dealing with the Government of Pakistan. I know that the Canadian ambassador has done what Canadian ambassadors do, in dealing with the Government of Pakistan. Clearly there are people coming back and forth across that border, and clearly it is a difficult issue.
Militarily there's a thing called a tripartite organization at the national level, where the heads of the Pakistani military, ISAF, and the Afghan National Army meet to discuss these issues—and all the way down there are similar apparatus, telephone lines, and so on.
But at the end of the day, you have to picture that it's a rough piece of ground, to say the least. It makes the U.S.-Mexican border look like a cakewalk, and I'll leave that one at that. This is a tough issue.