Beck had this right last night. Did you see in the video that with the exception of two women, one that confronted them and the other that took the video, nobody did anything. At the very least they should have all gotten up and left. A more direct approach would be to all rise and block the door and say they would not sit by while someone was removed for asking a question.
The OM of the dictators would be to make an example of those that would be in opposition and punish them severly. Instill fear and no one will do anything. They will just sit there like the rest of the audience did.