 So we need to really look at what are the sources? How can we help people? How can, on a system-wide basis, reduce our oil intake, our oil consumption? And to me, redesigning our streets so that it's easier to walk, bike, take a train or bus somewhere. It's easier to do those things than it is to drive. That's how we're going to get to our goals. We do also need to look at buildings. The way that we...