"Move fast and break things" was already a suspect idea in business. Now it's poised to wreck government, too. You have to admit: Silicon Valley has a knack for mantras. From "people first, profits will follow" in the 1970s to "fail better" in the 2010s, California's tech industry has coined some memorable phrases over the years to describe its uniquely American mix of New Age spirituality, self-help lingo and cutthroat corporate profit-seeking. But one of its more recent mantras has already