Can I ask you to comment as well on the competitive side of things? You mentioned Canada and the U.S., and I think you had a good example on fertilizer.
The U.S. used to be our best customer for energy, and now they're a competitor, though they are moving back to customer status. The Americans have different ways of subsidizing and supporting their industry. You mentioned the carbon tax. In Canada we have one, but the Americans don't.
Can you comment on the importance of certainty one way or another? The Americans seem to be eating our lunch internationally on a lot of these contracts and investments. What are they doing that perhaps we could be doing as well to help our competitiveness, especially in North America?