We've shown you some seriously tiny cameras, but now Lockheed Martin is looking to supply the Pentagon with flying cameras that are many times smaller. A miniature payload module about the size of an Altoid can be carried by this single-wing Nano Air Vehicle (NAV), sized and shaped like a maple tree seed. The minuscule vehicle is packed with navigation and communications equipment, imaging devices, and sensors that sniff the air for chemicals or detect signs of life such as body heat and breathing.

These tiny craft are fitted with two-stage rocket engines, and are designed to travel in a low-flying swarm of dozens of vehicles, all remotely controlled, for rescue operations or reconnaissance missions. Let's just hope these super spying devices don't find their way into the wrong hands.
— Charlie White

Scientific American, via The Raw Feed