Yes. I think there are two things there. One, as I heard in the previous session, involves making a distinction between more basic research, or the more fundamental science and the engineering behind these technologies, versus the applied research, or trying to commercialize these technologies. The government can play a role in that more basic research.
The other place where government can play a role is in thinking about things that are complementary to these technologies. We've seen the private sector do a lot of work in wind energy. There's less private sector research focusing on the transmission grid, on the smart grid, because that's an innovation that has huge public benefits with any breakthrough; that benefits all the companies who invest in renewables; and that will be hard for any one company to reap the rewards of. So investing in some of those complementary technologies is important.
It's really a question about technology choice, about trying to avoid doing the things that the market is already good at. I think that's one thing that's fairly straightforward for governments to observe, because it's easy to see what things the private sector is doing and is doing well.