Privacy is not just about what is public. A hidden camera in your bathroom is an invasion of your privacy regardless of whether the videos are made public. So

Privacy is not just about what is public. A hidden camera in your bathroom is an invasion of your privacy regardless of whether the videos are made public. Social networking sites are littering the web with web bugs, tracking cookies, and other invasive methods of recording more than you explicitly share with them -- how is that not an invasion of privacy?