Ultimately, we've been recommending that the NEB do it. I think, ultimately, an independent third party body should. The tools exist to do it. There are good trajectory models in different parts of the world, including the west coast.
As I've said, there are additional complexities by modelling not just ocean currents but also ice movement, when you get oil and ice. From a credibility perspective, we're looking at doing it, but in the long-run perspective it would be helpful for it to be done by a third-party body.