The extremist ISIS—now calling themselves the "Islamic State"—have left a bloody trail of mass murder in their advance across large swaths of northern Syria and Iraq over the past three months, slaughtering and enslaving Christians, Shi'ites and others deemed to be heretics. It is hardly surprising that they've been taking a tough line on cannabis. ISIS militants have posted footage on the Internet showing their men burning cannabis fields in the Syrian governorate of Aleppo. The video, online at The Telegraph, shows men cutting down the plants in a large field, making a number of piles, dousing them with a flammable liquid and setting them alight. ISIS claim they discovered the farm after having captured the town of Akhtarin from the rival Free Syrian Army in recent weeks. The militants claim the farm owner fled over the nearby border with Turkey, according to Huffington Post.