We can do it more quickly by starting the incentives today. If we were to give technology credits, as opposed to buying international credits, for instance, the domestic technology credits would kick-start today our movement toward clean coal and CO2 sequestration.
I like to look at the thing as short-term, medium-term, and long-term, but the signals have to be given today, so we can be ready for those long-term goals we're after. That's the main concern I have here.
Second, there has to be an investment context. It's the scale of investment we're talking about here, and the important thing to remember with CO2 is that you cannot retrofit CO2. You have to have fundamental new combustion systems, and that's why it's much more difficult and much more costly than SO2 and NOx and mercury.