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Video: Google's Driverless Car Takes Blind Man Out For a Spin

For years Google has been developing the technology to make driverless cars a reality. They use lasers, radar sensors, cameras, GPS and other tools to make these sophisticated automobiles "aware" of variables like surrounding cars, weather conditions and traffic signs.

Google first patented the auto-driving technology in 2011, and has been working on it since 2008. Here's the video