I wouldn't be so sure. The US has the concept of "Free speech zone" exactly for this situation. Designate a zone away from the event where all the protestors ha

I wouldn't be so sure. The US has the concept of "Free speech zone" exactly for this situation. Designate a zone away from the event where all the protestors have to go and arrest those that don't. Seems even more draconian than what the UK is doing right now. https://en.wikipedia.org/wiki/Free_speech_zone https://en.wikipedia.org/wiki/Free_speech_zone