TV review: Sophie Raworth on The Looming Tower

Newsreader Sophie Raworth assesses the new BBC Two 9/11 drama starring Bill Pullman and Tahar Rahim, with Kirsty Lang. The series tells the story of the rising threat of Osama Bin Laden and Al-Qaeda in the late 1990s and how rivalry between the FBI and CIA may have inadvertently set the path for 9/11.