Bruce Schneier has an excellent essay on the Eternal Value of Privacy in Wired. Highlights include:
The most common retort against privacy advocates — by those in favor of ID checks, cameras, databases, data mining and other wholesale surveillance measures — is this line: “If you aren’t doing anything wrong, what do you have to hide?”
Some clever answers: “If I’m not doing anything wrong, then you have no cause to watch me.” “Because the government gets to define what’s wrong, and they keep changing the definition.” “Because you might do something wrong with my information.” My problem with quips like these — as right as they are — is that they accept the premise that privacy is about hiding a wrong. It’s not. Privacy is an inherent human right, and a requirement for maintaining the human condition with dignity and respect.
…We do nothing wrong when we make love or go to the bathroom. We are not deliberately hiding anything when we seek out private places for reflection or conversation. We keep private journals, sing in the privacy of the shower, and write letters to secret lovers and then burn them. Privacy is a basic human need.
…Too many wrongly characterize the debate as “security versus privacy.” The real choice is liberty versus control. Tyranny, whether it arises under threat of foreign physical attack or under constant domestic authoritative scrutiny, is still tyranny. Liberty requires security without intrusion, security plus privacy. Widespread police surveillance is the very definition of a police state. And that’s why we should champion privacy even when we have nothing to hide.
Philip Agre’s arguments are always worth a re-read:
Absolutely – I assign that essay in all my privacy-related classes.