Wow. The formal decision letter is here, detailing the various provisions of the UCI student code that the Muslim Student Union violated when it persistently disrupted a planned speech on campus being delivered by Israeli Ambassador Michael Oren. As a result, the university has suspended the MSU for one year. I'm not an expert on campus free speech issues, so I don't weigh in on the legal issues this undoubtedly raises, but I do think this is probably going to turn into a much bigger controversy.
Via the VC.