[OmegaHN]

Playing Devil's Advocate here (I actually agree with you), the main argument against privacy is that it hampers effective and just running of the government. Simply put, the government must gather such information to work in the way that it is told to (we elected almost all of these people, remember). An example of this working properly is search warrants: the government can and will search your private property without your permission, a clear invasion of privacy, but acceptable as it leads to a better justice system. Yes, the government is limited in what it can search, but that power is still held by the government even if the person in question doesn't agree with it.

The question shouldn't be about protecting privacy; it should be about being fair with how the government invades it. For example, the body scanners could be considered not fair as they invade more people's privacy than necessary (or they could be fair if they didn't).