Cyber Warfare is a growing concern. How vulnerable are we? On this edition of Conversations, I talk with novelist Marc Elsberg about his international bestselling thriller, Blackout, which explores what happens when a cyber attack turns off the power in Europe, the United States and beyond. Elsberg discusses his research for the novel, and the fragility of our interconnected world. Originally published in German in 2012, the book has since been translated into multiple languages and has sold nearly 2 million copies. In June 2017 the book became available in English.