Islamic State Sympathizers May Have Made Airline Threats

U.S. law enforcement and security sources said on Wednesday, Islamic State sympathizers may have been behind more than a dozen threats in the last two days to international flights using U.S. airports or flying over American airspace. The sources, speaking on condition of anonymity, said that after 11 threats were received by U.S. law enforcement officers on Monday, at least four more were phoned in late on Tuesday.