Tiny little creatures, half-insect half-robot, have been developed under a project funded by the US defense agency DARPA. The electronics are incorporated into live insects in the early stages of the insects' growth (metamorphosis) so that the insect body grows around the electronic systems and the insect learns to accept these as parts of its own body.
The electronics can then be used to control the flights paths of insects and carry them to strategically important locations. Carrying tiny cameras and microphones, they can be manipulated to perch themselves at a suitable place on the wall or roof of the prime minister, president or the army chief of a county, and transmit all that goes on to a foreign embassy a few miles away. These insects' cyborgs can be powered by energy captured from the moments of insect wings or using biofules. The natural camouflage offered by harmless looking insects can be invaluable in preventing detection.
The rapidly developing field of insect cyborgs engineering is providing novel ways of espionage. So the next time you see a fly on the wall of the room of a key government official, watch out! It may be a spy from a foreign embassy placed there by remote control!