"Johnny Ryan's A History of the Internet and the Digital Future has just been released and is already drawing rave reviews. Ars Technica is proud to present three chapters from the book, condensed and adapted for our readers. This first installment is adapted from Chapter 1, "A Concept Born in the Shadow of the Nuke," and it looks at the role that the prospect of nuclear war played in the technical and policy decisions that gave rise to the Internet..."