The covert operation that killed Osama bin Laden produced new evidence that the “emir” of al Qaeda actively commanded the terror group’s affiliates in Yemen, Somalia and other parts of North Africa and was not just an inspirational leader. Materials found in bin Laden’s compound include hard drives, thumb drives and a dedicated fiber-optic cable used for point-to-point access to the Internet, according to two U.S. officials who read initial after-action reports on the raid.