What I think regarding investment in electric vehicles is that it's good to look to the future, because if we're going to get there one day we have to make some investment. It's really a bit of a calculated risk, because we don't know when we're going to get to having broad-based, high-volume, across-the-board electric vehicles. But if we don't start, we won't get there. A certain amount of investment makes sense.
In the short and medium term, we have to look at things such as natural gas that have the ability to be more broadly applied and that, given a certain amount of funds from people buying vehicles, can provide more broadly applied fuel savings or emission savings.