NAFTA troubles

Fewer Americans than Canadians are aware of this story: PM ponders recalling MPs over trade tiff. Here's the crux of the matter: "The United States has said it will continue to impose duties on Canadian softwood lumber despite a North America free-trade agreement appeals panel ruling that the duties violate the NAFTA." One wonders what the point is of having a tribunal to settle international disputes if one of the parties repeatedly refuses to abide by its rulings.