Anonymous FBI official: But, you know, just to simply tell you, we don't know. We have not been able to locate or identify the operators or the points of origin.

That's interesting in itself. If we're talking 'master-crime' then drones seem to be the way of the future. Forget about the prosthetic make-up - just pilot in an armed-drone - they won't know how to trace it. Especially if it explodes.

I'd be surprised if it was China or the other touted state-acting suspects - why would you telegraph your capability without actually doing anything?

It could be an internal psy-op aimed at ramping up trackability of drones by private owners. It's long been known that drones are a key component of any modern war. If they currently have no way to identify recreational-use from enemy attack, you could imagine they'd want the power to determine that. Whether that's good or bad, i don't know, only saying it's what i would be doing if i were the CIA org