I can. When we look at investor-state dispute settlements, they are of most value with countries where we have limited faith in their court systems and with their ability to enforce agreements. So we have investor-state dispute settlements with many Latin American countries, some African countries and various Asian countries—we have a lot around the world. We tend to have less emphasis on that when we are dealing with countries with established court systems and respect for the rule of law and with whom we don't feel that same kind of threat.
But, when it comes to the U.S., we have had the experience through the course of NAFTA of having been challenged by U.S. investors many times, as I mentioned. We have had cases where Canadian investors did try to make moves toward challenging the U.S., but the U.S. has had no cases against us. That simply wasn't working as an instrument between us and the U.S.