Pulitzer prize-winning author Lawrence Wright and former FBI special agent Ali Soufan join Christiane Amanpour to discuss the bi-partisan event in Congress they're attending to mark 100 days since Jamal Khashoggi's murder. Spike Lee, the director of "BlacKkKlansman" discusses the extraordinary true story behind the film. Our Walter Isaacson talks to New York Times columnist Andrew Ross Sorkin about the link between credit cards and mass shootings. via Knit