When it comes to drone surveillance, I have to admit I don't really worry much about an obvious, can't-miss-it, machine on the ground. It's just a continuation

When it comes to drone surveillance, I have to admit I don't really worry much about an obvious, can't-miss-it, machine on the ground. It's just a continuation of previous robots used in bomb disposal and negotiation, at least until armed. Something small enough to sneak in somewhere is more of a privacy concern, and those can't be more than a couple decades away.