Dan sent me a link to a great essay by Bruce Schneier about privacy being a human right, not a government allowance. The money quote:
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.
Something to consider the next time somebody tells you you only need privacy if you have something to hide.