As predicted in Swarm Troopers, insurgents are now mass-deploying low-cost drone build from simple materials and commercial electronics. Thirteen drones attacked Russian forces in Syria on Jan 5th – this is likely to be just the start.

The full story is in my piece in New Scientist magazine here — https://www.newscientist.com/article/2158289-a-swarm-of-home-made-drones-has-bombed-a-russian-airbase/