Notice the unobtrusive peekers! (Score 1)

Surveillance cams have many legitimate and worthwhile uses. No argument there.

----Aside from the people who carry intent to break the law, the rest of us don't really have to worry----

Civil liberties exist not to protect citizens from criminal intent but to protect citizens from those with the power to enforce.

People do however have a sense of privacy or anonymity even in a crowd. Even though some people are aware of cameras watching them, I think most people forget or ignore their presence. Taking photos of the cams is a way to focus people's attention.

If a person is directly watching you for any extended period of time, I think you would become aware of that person and modify your behavior. With surveillance cams, you (or your beautiful wife, or your innocent children) can easiliy overlook the fact that you are being watched.