Re: Why not use social media?
"A nutjob with a grudge would need a massive slice of luck to get a bullseye on airliner, especially at 3000 feet AMSL. It is far more likely that they would lose their toy or get arrested than they manage to touch an airliner in just the right spot to be dangerous."
Yep, an engine intake, even on the biggest engines, is a very small target at airliner speeds and at a range a good sniper in perfect conditions would have trouble with. I can't see even an expert drone flyer being able to hit a target like that in the vastness of the 3D world with almost no reference points being able to get a "hit" with even a smidgeon of certainty. Maybe a fleet of drones working in a networked pattern would have some chance, but a cheap rocket launcher with some form of guidance or heat seeking could probably be bought for less than a fleet of drones big enough to cause damage and have a better chance of a result.