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Video: Jon Stewart on the new car regulations
May 25, 2009, 9:37 p.m.
'The Daily Show with Jon Stewart' breaks down Obama's new fuel-efficient, environmentally friendly car laws.
Video: Obama announces historic new car standards
May 19, 2009, 2:14 p.m.
Watch President Obama announce his sweeping fuel-efficient standards for new cars.
Video: Meet the Karma hybrid
May 19, 2009, 12:41 p.m.
It may cost a bundle, but it burns no fuel for the first 50 miles.
The roads least taken in America
5 brilliant mathematicians and their impact on the modern world
Eye-popping Icelandic crosswalk brings traffic to a crawl
9 train stations with unforgettable architecture
The 10 scariest roller coasters in the world
How fast could you travel across the U.S. in the 1800s?