Operation Encore: The FBI’s secret investigation into possible Saudi ties to 9/11

For the first time ever, we’re getting an inside look at the FBI’s investigation into possible ties between Saudi Arabia and 9/11. A new report from ProPublica and The New York Times Magazine is the first to explore what the FBI calls “Operation Encore.” ProPublica senior reporter Sebastian Rotella co-wrote the article and joins CBSN to explain the fascinating developments. Source