Am I a Pirate?

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I had a question for all of you. Here is my predicament. I am a student at a private university of about 800 (on campus) students. I have started a radio sation using shoutcast and another program that allows you to stream within the school's network only (not over the internet). To make matters worse, the school found out and ordered me to shut down the only radio station that the school has ever had. They called it a "Pirated Radio Station" I know that I am not breaking any laws, but I can't find anything to back up my claim because the Laws have been written for Internet streams and not for Intranet streams? So, the question remains..Am I a Pirate? Is there anywhere I can find laws that govern the use of the Shoutcast plugin, and the ability to stream within a network? Please help, I have a meeting with the disciplinary committee on Tuesday Nov. 6 to discuss my fate. Thanks in advance.