Paul Cesarini of Bowling Green State University is an assistant professor of visual communication and has been using Tor (The Onion Router - an anonymisation system for net.traffic) to familiarise himself with it so that he could then discuss it with students in two of the courses he teaches. He was visited by campus police and a network admin and told to stop using it. It seems that someone else on campus was using Tor, and more's the point he was under investigation for fraud of some kind, and they wanted to know if the student under investigation had been …