.IF COLUMBIA UNIVERSITY'S head of state, Minouche Shafik, thought that pro-Palestinian demonstrations would go away after she called in New York Area cops on April 18th, she was wrong. The tents are actually back and protesters are actually pushed: in the very early hrs of April 30th they filled an university property, barred its doors and also curtained a flag reading "intifada" from its front view. Since the start of the battle in Gaza there have been actually protests at colleges throughout America and also, at most of all of them, detentions. Trainees say, in some cases rightly as well as occasionally wrongly, that they are actually exercising their free-speech rights. What policies regulate objection as well as pep talk on campus?