Reading Time: 1 minutes

Man displays red Arabic N (Nazarene/Christian) being used by Islamic State of Iraq and Syria (ISIS) to mark houses for extermination or expropriation (Credit: Jeremy Courtney via Twitter)

Man displays red Arabic N (Nazarene/Christian) being used by Islamic State of Iraq and Syria (ISIS) to mark houses for extermination or expropriation (Credit: Jeremy Courtney via Twitter)