You're exactly right.
And, what happens when eventually one augers in or wanders off?
Then, how do you craft legislation so it stays in the hands of the protectors and not the Bad Guys without giving the protectors free rein to be snoopy?
I...
It's also my understanding that he deliberately did not want to have high security at his events, in a personal assumption of the risk of this type of vulnerability.
From an executive protection standpoint, UAV's would be, in a limited scope of application, be absolutely a great thing, irrespective of their political leanings. The matrix looks more at how likely they are to upset someone enough to get off...
I think that's what we want; your own private security being able to utilize drones at your own event. However, in some states for various reason, this isn't legal or practical.