No, but we should put signs up everywhere that say "You're being watched" and with a picture of a security camera on it.

Everywhere... even Intangible's house? No way! Nobody needs to see that.

I agree with Intangible, his idea really would do something. Rather than a camera which catches evidence of crime or any sort of threatening. Humans ID can be noticed and person might be noticed by others, but who would care? Camera won't catch the criminals or citizens which disobeyed the law. They will have time to escape and take no responsibility for damage caused. Cameras could capture evidences but won't prevent anything from happening. But the signs which state that everyone in a certain areas is observed by security cameras. It would make people think twice rather than just be caught on a tape. - And the privacy would be lost if the cameras would get setup beside linear pattern settlement. But for personal security it would be useful, if you drag other's attention. - Extra security is an option. And the citizen insecurity won't get affected positively just with security above theirs heads which is only visual evidence.

No we shouldn't because that's basically an invasion of privacy if placed somewhere that people don't want it to be such as the bathroom or someone's bedroom. .