Bush: U.S. progress on better plug-in hybrids speeds along.

WASHINGTON - The United States is making good progress on plug-in hybrid battery technology that would allow drivers to travel 40 miles without using any gasoline, President Bush said Thursday. "We're working on battery technologies," Bush said in Washington at a speech to the National Association of Manufacturers. "They say we're pretty close to a breakthrough in a battery where you can drive the first 40 miles on a battery, and your car doesn't look like a golf cart."