Certainly harmonization is a significant issue that we'll spend some time talking about. We don't really see issues like pre-clearance as harmonization. It's more a matter of coming up with common approaches to have a smooth process back and forth across the border.
When it comes to regulatory issues, some stakeholders are calling for harmonization between Canada and the U.S., and Mexico in some cases, but I think that's not necessarily going to be something that we would pursue across the board. Where it makes sense in a specific industry that is very integrated, then we may pursue that. In other areas, it's more about making sure you have some kind of regulatory coherence or co-operation to ensure that although regulations may be different, they don't pose an obstacle, because they're essentially trying to achieve the same objective. Those, I think, we can deal with more easily, and that's probably the more common approach that we'll take.