I fully recognize the implications of your question with regard to the Middle East and the question of instability in general with regard to access to secure supplies of oil. And clearly, from the United States' standpoint, from Washington's standpoint, having access to Canadian oil--certainly in terms of the potential reserves that the oil sands project--ensures a secure supply, a safe supply, and a friendly neighbour supply.
But at the same time, in your question you referred to “healthy”. I don't think it's a healthy situation when one nation--namely, the United States--is dependent on securing 25% of the world's oil production and having it to itself. I think we're reaching a point where we've got to re-examine our dependence upon fossil fuels in the future. Therefore, I feel that at this moment, despite the fact that we have this incredible hydrocarbon reserve that exists in Canada through the tar sands, we all owe it, both to ourselves as Canadians and in relation to our friends in the United States, to raise some hard questions about the future and what it means to make a transition away from dependence upon fossil fuels into an energy renewable alternative.