Jthese things are either hacked in flight or get shot down by the dozen.
I've had to wait for two days until someone raises the most obvious issue with drones. Thanks Andy!
As a matter of fact, as much as the NSA can have access to most if not all stuff around the world, others can do so, too.
It's nothing like "highest rank computer science" which would be required to put some "sleeping" hack (read: trojan) into the software of such kind of weapon, so I'm wondering how much one would trust the integrity of these "tools" in real life combat, let alone if they're used against another nation who has more IT related capabilities then let's say Irak or Afghanistan.
And above that, even if the drones are working as expected, they're still operated by some static software with static methods, resulting in static reaction to reproduceable situations which in turn leaves them vulnerable to any attacker who knows at least parts of their software since he can predict their maneuvres in advance.
Best regards - Mike