As the 20th anniversary of the Sept. 11 attacks approaches, a new biography traces Osama bin Laden's path from a shy, religious teenager to the leader of a global jihadist group dedicated to mass murder. Journalist Peter Bergen, who met the al-Qaida leader in 1997, says that a series of events kept pushing bin Laden "further and further down the path of radicalization." We also talk about conditions in Afghanistan after the U.S. troop withdrawal, and the chances that terrorist organizations will flourish there as al-Qaida did in the '90s. Bergen's new book is 'The Rise and Fall of Osama bin Laden.'

Also, Justin Chang reviews the new Paul Schrader film 'The Card Counter,' starring Oscar Isaac and Tiffany Haddish.