“Militaries could face a new threat: swarms of cheap enemy drones, according to the Pentagon’s counter-terrorism chief.
‘It is conceivable that some day soon we will see someone’s otherwise capable military security force penetrated, defeated or even overrun by such technologies,’ Lt. Gen. Michael Nagata, director of the National Counterterrorism Center, said at the recent Special Operations Forces / Low Intensity Conflict summit.”
Source: Pentagon Counter-Terror Chief: Expect Terrorist Drone Swarms ‘Soon’ – Defense One