Just very quickly, in the interest of time, I agree with the comments you've made on that. In this particular thing I want to emphasize again that the accelerated capital cost allowance is not just for the oil sands. It started in the mining industry, and it's now being extended in other forms of accelerated capital cost, to the renewables and cogeneration.
So from that perspective, it's not a subsidy. As you say, it's a deduction up front, and it has to be paid later on. And the restriction on it--back to Mr. Cullen's comment--is that you can't just keep pushing it off forever. It's restricted to the revenue that comes only from that single mine. You can't spread it out to the rest of your company. So eventually it will have to be paid. It's just a deduction.
It's a timing question. It's not a subsidy.