Is the argument that Flock cameras are used for mass surveillance defensible, or just paranoia, and if it is real, does anyone have a good idea of whether the same argument would apply in the UK?
Our definitions of mass surveillance must differ for you to ask this. Flock cameras are marketed and purchases for mass surveillance expressly.
That doesn't mean the cameras are good; I think they aren't, or rather, at least in my metro, I know they aren't.