There are many evil does and criminals out there. The government must make sure and stop these thing before they get out of hand. If you are a good person and are following the law than you have nothing to hide. I do wish however that the government would not sell this information to anyone else.
I do not believe that government entities should be allowed to track Internet communications. With recent revelations, it is obvious that this happens, but I certainly don't approve of it. My actions on the Internet are meager and of no real importance, but I would still prefer privacy over no privacy.