Re: CCTV
Imagine that all the CCTV cameras were to be replaced with large watchtowers. (Which would put at least one on almost every street corner in the average town). Atop each tower is a man in a black uniform and red armband, scanning the streets through a large pair of binoculars and writing his observations in a notebook, a telephone by his hand.
Indeed - watch towers and uniformed personnel are very obvious to the eye.
That's why when Mass Observation started in the UK, information on peoples' behaviour, conversations, etc. was gathered covertly by observers.