City surveillance: Crime deterrent or invasion of privacy?

The governments say they are doing all of this for our safety, but I don't think that way. They say is easier to caught people who commit crimes thanks to all this surveillance devices. That is okay as long as is for solving crimes only but now individual citizens are also having their privacy invaded in the work place by employers who utilize surveillance cameras and computer software programs to monitor their employees and forcing their workers to sign waivers of their expectations of privacy.

Today the right of privacy is also coming to the forefront as more and more employers operate surveillance systems in areas in which their employees have a reasonable expectation of privacy. In an effort to prevent theft, sexual harassment, the viewing of pornography on office computers and the perpetration of actionable civil or criminal acts, employers are in many instances intruding on and invading the privacy of their employees. Employers are using hidden cameras, workplace searches, keystroke monitoring computer programs, e-mail, website and voice mail monitoring, and other software to snoop on their employees while cloaking themselves with the claim that their actions are being done to protect their employees.

Also the government of Mexico is saying that we have to register our cellphones numbers for our own security. They are sending helicopters very near to the ground of cities, you know why?, because the helicopters have a special device that can hear or intercept the call made on telephones and cellphones to be able to track persons involved with the narcs. But the government doesn't have the right to hear and intercept our calls. In Mexico D.F. police officers can enter your house without an order if they want to with the pretext that is for looking narcs. If we don't stop this right now you is going to stop the government of controlling our every action. I rather be free and be insecure but with hopes of a better future than being a prisoner in my own house knowing that I can't do anything about it.