SNIP We now know the source of the mysterious crop circle that turned up in the small town of Chualar, about two hours south of San Francisco. And it turns out a lot of the speculation about what the viral photo might be was correct. NBC Bay Area was originally tipped off by an anonymous source, who said Silicon Valley chipmaker Nvidia was behind the crop circle that was first spotted toward the end of 2013 by a photographer named Julie Belanger. We now have confirmation from the inside. The company plowed through the farm to (eventually) get publicity for...