And you thought unmanned aerial vehicles were far fetched.

Well certainly you've heard about the success the U.S. military has had with the employment of unmanned aerial vehicles in Afghanistan and Iraq. Oh that's just the beginning, the Defense Defense Advanced Research Projects Agency (the real skunkworks group that pursues the only in "sci-fi" technology) is working on plans to develop a living cyborg butterfly.
The Jean-Claude Van Damm Butterfly's (referencing his Cyborg movie here guys, keep up) mission will be to fly into a sensitive areas regular troops can't reach, carrying explosives, detection gear, or possibly even transmit audio and video back to a command post. With the advancement and miniaturization of technology this isn't far fetched at all. The tiny micro system called a Mems would be introduced at the pupa stage of development and the insect would develop around it. The Mems would then interface with the insect's brain functions to control flight and deliver the required data.

Now some (primarily entomologists) have dismissed this as unrealistic but remember this is the same agency that developed the their Arpanet computer network which eventually became the foundation for the Internet (yeah, no Al Gore involvement). They're also responsible for bringing technology like the exoskeleton to life too. Make sure you keep a close eye on that butterfly in your yard come springtime.