It makes around $ 1 million a year , sources say . Drug smuggling is n't the only way it generates revenue . Syria : ISIS is like organized crime , with deep roots and no law enforcement . U.S.-led airstrikes are aimed at cutting off the group 's funding .
ISIS makes around $ 1 million a day , sources say . Oil smuggling is n't the only way it generates revenue . Experts : ISIS is like organized crime , with deep roots and no law enforcement . U.S.-led airstrikes are aimed at cutting off the group 's funding .