An anonymous reader writes "I have noticed that many airports and hospitals I've visited have some kind of internet usage policy in place. Some use software similar to Websense, which effectively blocks sites based on blacklisting them by category. A commonly used blacklist prevents users from accessing 'forums or discussion boards,' yet I find that often these networks allow users to access sites like Fark, Slashdot, Digg and other message boards that appeal to the technical culture one might find in the IT world. In your experience, do IT administrators abuse their supervisory powers? Has there ever been a backlash from users or management for doing so?"