I would say that labour and environmental standards in the United States are similar enough to those in Canada that these kinds of social dumping tariffs probably wouldn't be applied against the United States. I would envision their being used more with regard to countries such as China, which flagrantly violate internationally recognized labour standards and really don't have any environmental safeguards at all.
However, there are some instances in the United States that I think might be subject to such a challenge. For example, in the southern United States there's the whole concept of a right to work, which certainly goes against International Labour Organization standards. And I'm pleased to mention that the Canadian government recently signed on to a challenge of that through the NAFTA labour side agreement. As I say, there's very little enforcement under the NAFTA labour side agreement, but I think there is at least that one example in the United States that could potentially be challenged as social dumping.