KQED NEWS FIX -- You might call him the accidental immigration activist. After attending school in Mountain View and graduating from San Francisco State University, Jose Antonio Vargas had a successful career as a journalist. He worked at the Huffington Post, the New Yorker and Washington Post, where he shared a 2008 Pulitzer Prize for coverage of the Virginia Tech shootings. Through it all, he hid a secret. He was in this country illegally. In 2011, Vargas revealed his status in a New York Times Magazine essay and has since become an immigration advocate. His new film, “Documented,” chronicles his life story.