I just returned from the zócalo about 6 pm today and can provide insight. I drove downtown so that readers would not have to rely on second or third hand hearsy. A relatively small number of protesters are in the zócalo, and set up in all directions for about a block in each direction, more or less, most with or under their tarps. All is peaceful. They are not disturbing anyone. The city doesn't show as it should, obviously, with still some papers and a bit of garbage strewn about, but nothing really horrible. The worst thing is the graffiti on the walls of historic buildings, banks, private businesses, etc. The guests at our B & B are still able to enjoy the city, although I do encourage them to get out to the villages where all is 100% calm and unaffected. It's still a bit disconcerting and at times inconvenient spending all one's time downtown, whereas under normal circumstances you can easily spend you entire vacation without leaving the city because of its vibrancy, magic, etc. However, while it's always advisable to get out into the countryside, now it has an added function, being to give travelers a respite from the downtown area. Casa Machaya Oaxaca Bed & Breakfast.