The protesters who gathered outside Google's San Francisco office on Friday had a single, simple demand: give two employees their jobs back, immediately. But the group of 200 Googlers made clear more was at stake. It was, as one software engineer put it, "a struggle for the future of tech." The two employees at the center of the squall, Rebecca Rivers and Laurence Berland, had been placed on administrative leave a few weeks ago. Neither have been given a formal explanation from Google.