“By God, we will take revenge! Even if it takes a while, we will take revenge, and every amount of harm will be responded to with multitudes more.” Aaron Y. Zelin, “‘al-Furqān Media presents a new audio message from the Islamic State of Iraq’s Shaykh Abū Bakr al-Ḥussaynī al-Qurayshī al-Baghdādī: ‘Announcement of the Islamic State of Iraq and al-Shām,’” Jihadology, last modified October 28, 2013, http://jihadology.net/2013/04/09/al-furqan-media-presents-a-new-audio-message-from-the-islamic-state-of-iraqs-shaykh-abu-bakr-al-%E1%B8%A5ussayni-al-qurayshi-al-baghdadi-announcement-of-the-islamic-state-of-iraq-an; “Abu Bakr al-Baghdadi: The man who would be caliph,” The Week, September 13, 2014, http://theweek.com/article/index/267920/abu-bakr-al-baghdadi-the-man-who-would-be-caliph.