The sky’s the limit . . .
With military-grade technology, drones could fly up to 20,000ft and at 160mph. They could hover over cities to hunt for criminals or to film rioters. Those with larger payloads could deliver defibrillators to patients in cardiac arrest far faster than ambulances. They could deliver supplies to people stranded by floods. Drones could patrol Britain’s coastline and look out for illegal immigrants.