Washington Library and the FBI
NPR has a great piece on a Washington Library Tested by Patriot Act where a librarian did exactly what was right to stand up for her patrons' rights.
Over the years, I have been asked by people why librarians "stand in the way of the police," but that is not the way I view it at all. I stand in defense of people's basic rights. If that happens to be in the way of the police, then they are the ones that have to change their approach.