How did a TV film save the world from nuclear destruction? What do we miss out on if we dismiss social media? Why do we have so many dystopian sci-fi stories but few in the opposite light? This week, we talk to David Craig, Clinical Professor of Communication at USC Annenberg School for Communication and Journalism.

An expert on Hollywood and social media entertainment, David's new book Apocalypse Television accounts an important period in TV and world history around The Day After: a film that contributed to what historians describe as "Reagan’s Reversal” in the 1980s, which led to the end of the Atomic Arms Race. As Disney CEO Bob Iger wrote in the book's foreword, "those who tell the stories may save the world."