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Will smart machines create a world without work?

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WASHINGTON (AP) — They seem right out of a Hollywood fantasy, and they are: Cars that drive themselves have appeared in movies like "I, Robot" and the television show "Knight Rider." Now, three years after Google invented one, automated cars could be on their way to a freeway near you. In the U.S., California and other states are rewriting the rules of the road to make way for driverless cars....

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