They'll bite through your aileron wires. They'll insert toasting forks in your tyres. That is the tale of the Gremlins. Imagine a pilot in an expensive fighter jet flying over contested airspace somewhere in the Pacific. A series of blips of appears on the radar: drones staging a coordinated assault. But they're far out to sea for attack drones -- too far, it seems, to make it back to any safe landing spot. How did they get out here?