We've chipped away at it one piece at a time. What has tended to happen over the last few years is that on the same day, as a result of a lot of groundwork together, similar regulations with respect to auto fuel efficiency requirements and a variety of other things get announced by Canada and the United States. That is the way it has gone. But I agree with you completely. We breathe the same air, we drink the same water, and none of this respects a line that's drawn on a map. One way or another, we have to figure out how to work together. It's one of those issues that is going to only grow in importance.
On June 2nd, 2015. See this statement in context.