Well, if you look at the text of the Basel Convention, where you had 170 countries involved, you see that it's a comprehensive piece. If you also look at what's in the Canada-U.S. agreement that was finalized last year, you see there are a lot of details there too.
Certainly we would look to revise the list and not focus on products and materials that are creatable, not focus on polymers and not focus on chemical feedstocks, on things like ethylene. It's nonsensical to include ethylene on a list like this.