While I was standing there taking this picture, the guy in the left of the frame was asking the police officer whether he could join the protest. The officer told him very politely that he could not, because it was an unlawful protest and the police officers were now just trying to contain it. The guy in the left of the frame asked about his Constitutional right to assembly. "I understand how you feel," the officer said, "But these people have already committed acts of vandalism. Right now, our job is just to contain them."