I just want to add something. I know there's a very deep concern by everybody about the environment and I want to point out a program that's happening in Sudbury now.
Vale has just announced that they're going to be putting somewhere around $2 billion into their structures in Sudbury over the next two years for an AER program, an atmospheric emission reduction program.
I mentioned that 90% of the sulphuric acid that used to be in the air is now gone; this AER program will take out another 70% of the remainder. The technologies they're talking about now are not the technologies that were there when we were complaining back in the sixties and seventies, and I think we have to be very aware of that fact. It's a different world, and anything built now is going to be at a much higher standard than was ever there before.