Yes, there's quite a bit of work on hybrids as well. The NRC has not worked on the whole system, but we have worked, in one of our institutes, on batteries, lithium batteries and other batteries, new technology for batteries that actually work in hybrids.
As to fuel cell cars, there are still few around, I guess, until China builds up their—A thousand cars is probably the largest fleet. The industry is looking at fuel cell cars, but they will probably be on the market only in 15 years or so. Fuel cells for other applications are moving faster than for cars.