I think this comment is dangerous as it legitimises the (clearly documented) widespread arrests of openly marked journalists behaving entirely non aggressively, almost surely because they were pointing cameras at police officers behaving violently. Whether or not you think that the police violence was justified (disclaimer: I don't, at all. I think the psuedo military tactics US police demonstrated were the opposite of sensible de escalation strategy) I'd be surprised if you think that police should have the power to decide whether or not they are filmed.