Upon learning that he had a background in electrical engineering, IS gave him a car to drive to Raqqa, Syria, where IS militants told him about a project to "use a type of machine, similar to a satellite dish, to transmit microwaves that could bring down an airplane," the government document said.
US says detainee studied in Louisiana, became IS fighter →
Erdogan also took aim at comments from U.S. commanders in northern Syria, who said any attack on them or Kurdish partners would be met with force.