Politicians have bodyguards that can put a bullet through the head of anyone who acts on the information, sometimes even legally!

On the other hand, do you really want the neighbor's meth-head boyfriend to have NSA style access to your records? to your children's records?

Seriously guys, a world with zero privacy may sound kind of cool... in theory. But you have to realize that there are actors much more nefarious than most governments on Earth, and the impact to the lives of those who become "persons of interest" for that kind of actors happen to be more immediate and unpleasant.

Not to disagree with you, but those bodyguards would be subject to the same surveillance, and the thought experiment is meant to explore that too.

But as for what this would be like, most likely it would be a society like the Borg (TNG Borg, pre-queen, not VOY Borg).

I'm not familiar with Star Trek lore. Will have to look at it.