'It's similar to North Korea': Inside ISIS's sophisticated strategy to brainwash people in the 'caliphate' Pamela Engel Billboards, newsletters, radio stations, murals, big-screens, and pamphlets. ISIS inundates the residents of its territory with propaganda that has become nearly impossible to escape. It's well-known that ISIS has been very successful in disseminating its propaganda online to recruit Westerners to its self-proclaimed Islamic "caliphate," the swath of territory it controls in Iraq and Syria. But ISIS also runs a sophisticated operation within the caliphate to brainwash the population it rules. The group has set up "media points" in the cities it controls...