I think it's an important foundational piece. I think it's not optimal. It's not optimal for industry to have a piecemeal approach. Now, if every regional program were absolutely consistent.... I have to tell you that the western climate initiative, the regional greenhouse gas initiative, and the midwest climate accord in the U.S. are talking and trying to come up with harmonized rules, because this harmonization is really essential for our cost-effective solution.
So if that's the best you can get, at least it gets you down the road and gets you started, but it is not optimal based on the fact that you have multiple states interacting and multiple sets of rules. It just makes it more difficult, but it doesn't make it impossible.