Smaller drones could deliver small payloads anti-personnel/incendiaries on eg. London or just as ransomware - a dozen expendable drones could occupy the airspac

Smaller drones could deliver small payloads anti-personnel/incendiaries on eg. London or just as ransomware - a dozen expendable drones could occupy the airspace over Heathrow until some anoncoin was paid. Sky's the limit literally! Exciting times!