“You Christians all need beheading with a nice blunt knife and stuck on the railings at Raqqa... Come here I’ll do it for you!” (Tweet)Robert Mendick and Robert Verkaik, “British female jihadis sign up to the Islamic State's all-women police force,” Telegraph (London), September 7, 2014, http://www.telegraph.co.uk/news/uknews/terrorism-in-the-uk/11079386/British-female-jihadis-sign-up-to-the-Islamic-States-all-women-police-force.html.