Once I got called for questioning on a local retail store, since I was with enough free time and a good mood, so I just went with it. So the reason I was called was that the security guard noticed that I was looking at all security cameras which made me seem suspicious, my only answer was "well they're distracting".
Anyway there was no other irregularity and even the manager thought that the guard was being over zealous, but I was left wondering if other people are not uncomfortable around so many cameras. That this journalist seems surprised makes me think that maybe other people aren't even aware of them.