Automakers' 'hush-hush' labs in Silicon Valley

The auto industry remains secretive and competitive, so it's no surprise that few people know some of the world's major automakers have clandestine labs in Silicon Valley. Inside, they're developing technologies that might appear in tomorrow's cars and trucks.

Most of the work is hush-hush. But German automaker Volkswagen recently offered a peek behind the locked doors of its Palo Alto, Calif., lab.

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