I Googled unmanned aerial vehicles and unmanned aerial systems (systems seems to be what they are calling themselves nowadays), and came up with some stuff. The Predator has been around for a while. I recall mention of it in Hang Gliding magazine. The Boeing ScanEagle is relatively new. I have seen stuff that could be similar to both.

The aircraft that bears some resemblance to the ScanEagle is as pretty as any rigid (Swift or ATOS, either one) I have seen, and almost as quiet. I have heard thru the grapevine there is some other stuff over here also, but I haven't seen it that I know of. I can probably say this much without getting into trouble. I haven't met but one HG pilot since I've been over here, but I would bet there are a few more. Talked to one sailplane pilot, and I would bet there are more of them over here also. I've also talked to some pilots, who think anything less than two engines running constitutes an emergency!