On this website the focus on drones has been on security – stopping terrorists and authorising everyone else, and the gathering of data with full permission.

Truly miniature spy drones will certainly exist one day. I have speculated that they might mimic bees or flies to avoid detection.

While these aren’t as small as I have imagined, the Black Hornets certainly tiny and very impressive:

• Already being used by some major armies
• Not heard beyond 20m
• Not seen beyond 100m
• Returns to base with the push of a button
• 20 minute flight time
• Three cameras

The new owners are a thermal imaging company. So you can be located via your heat signature from a device just 20 metres away, and at night and pretty much day as well, you will never know.

Check out this BBC video, and even though the accent is a bit thick,  you’ll get the idea and see how pleased he is with the wee drones: