“[In Mosul] children played with sticks, pretending these were weapons they would use to fight heretics and unbelievers.”Robyn Creswell and Bernard Haykel, “Battle Lines: Want to understand the jihadis? Read their poety,” New Yorker, June 8, 2015, http://www.newyorker.com/magazine/2015/06/08/battle-lines-jihad-creswell-and-haykel.