Abdel Bari Atwan is editor-in-chief of Rai Al-Youm and founder and former editor-in-chief of the pan-Arab newspaper Al-Quds Al-Arabi. He is the author of The Secret History of Al-Qa’ida; After Bin Laden: Al-Qa’ida, the Next Generation; and most recently, Islamic State: The Digital Caliphate. He has contributed to the Guardian and Scottish Herald and appears regularly on the BBC’s Dateline London. On Twitter: @abdelbariatwan.