I think that time always makes changes as such. However, as Ms. Fry indicated, if you don't have a plan at the beginning, who knows how you're going to get there, or what happens when you actually get there.
It is very critical that some sort of restoration plan be in place at the beginning of a project. It may change as time goes on, but if you can have a plan upfront, at least everybody is aware of how it may happen. As I indicated, if it's on the balance sheet, there is a much greater incentive to restore as you go along, rather than wait until the last minute and then hopefully they will do it. Also, historically we know that in some cases, if the company runs into financial problems at the last minute, sometimes the restoration falls back on the public purse.