Jeff, you noted in the budget—and I just happen to have it with me here—the manufacturing component that you worked on with a leading motor coach manufacturer to integrate a modified heavy-duty diesel engine into an existing vehicle in order to meet requirements for reduced emissions.
I find that fascinating, not only because it's in the budget, but because it covers so many bases with respect to what we've been trying to talk about when we're trying to lower our emissions and be environmentally conscious while at the same time trying to make sure we have a strong economy.
I wondered if you could just comment on that, because it's an extremely practical application.