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The Center for Transportation and Livable System is a center funded by the U.S. Department of Transportation to focus on conducting complementary and collaborative research in transportation and infrastructure systems.

Get in-depth coverage of current and future trends in technology, and how they are shaping business, entertainment, communications, science, politics, and culture at Wired.com.

FactCheck.org monitors the accuracy of claims by politicians, political ads and chain e-mails. We cut through the spin and tell you what is true and what is false.

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Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Leading source for news, video and opinion on politics, business, world and national news, science, travel, entertainment and more. Our local coverage includes reporting on education, crime, weather, traffic, real estate, jobs and cars for DC, Maryla...