I don’t know what the right balance would be.
I think I’d trust my government and my police (which I work for) enough to have a lot more cameras in the streets. But I wouldn’t want that to happen in a totalitarian country.
Personally, I wouldn’t want my devices to be scanned by whatever program, but I wouldn’t mind if what was coming in and out of my computer was scanned to prevent organized crime in a certain way.
But only because to communicate I’m using installations which don’t belong to me, but to the phone company.