The terrorist organisation that changed the trajectory of global politics through its spectacular attack on September 11, 2001 has survived, but just. A decade has passed since Al Qaeda's founder Osama bin Laden was killed in an American raid in Abbotabad, Pakistan. In spring 2011, with the charismatic bin Laden gone and Al Qaeda’s ambitions for regional upheaval seemingly preempted by widespread revolts across the Middle East, optimistic predictions abounded ...