Tech, computers, code, security vulnerabilities, hacking elections... We hear about the technical change, but what about the subculture of tech and coders that brought it about? Who are these people who -- in the words of our guest today - "are among the most quietly influential people on the planet"? Rachelle Saunders digs into this topic with writer Clive Thompson, author of the new book "Coders: The Making of a New Tribe and the Remaking of the World".