During the Senate Committee on Homeland Security, late September, the FBI director, Christopher Wray warned that terrorist drone attacks are coming to the U.S. “imminently”, in response to a question by  Senator John Verhoeven from North Dakota.

“Terrorist organizations have an interest in using drones. We have seen that overseas already, with some growing frequency and I think the expectation is, it is coming here imminently,” Wray said, “I think they are relatively easy to acquire, relatively easy to operate and quite difficult to disrupt and monitor.”