I think the world changes. I think it takes time to get to know everybody and to see.... Since NAFTA came in, we have penetrated parts of the United States that we hadn't before, and absolutely in Mexico. Our success in Mexico has been unbelievable. We've learned things and we've discovered things. As the opportunities emerge, it shows us what kinds of changes need to be made to make it even more successful and better.
In answer to your question, I would say that it's economy of scale and the ability to recognize things that can be improved, and then to actually get them improved. While some people have been worried about renegotiating NAFTA, we think this is an extremely important exercise to go through. It has been 20 plus years, and there are opportunities.