If I'm reading what you're saying correctly, this is EXACTLY how it works. The protesters were allowed to peacefully assemble in Union Square. The protesters w

If I'm reading what you're saying correctly, this is EXACTLY how it works. The protesters were allowed to peacefully assemble in Union Square. The protesters were allowed to peacefully march on the sidewalk to anywhere they wanted to go in the city. What the protesters were NOT allowed to do is obstruct traffic and walk in the middle of the street without a permit. The people that were arrested were the ones that were walking on the streets and blocking traffic. You only need a permit if you intend to march on the streets. It's the same as you or I needing a permit to host a parade through Midtown.