should also know, there was a very vibrant and very alive and artist community in san or anarchist community in san franciscothey were holding meetings, advertising in newspapers, and you can come to some of their meetings. they had newspapers, and they were often high profile groups in san francisco. one was called volonta. people knew about it. in san francisco it was very different. we wouldn't identify its publicly now, but this is very public at the time. you have this and artist element as well. you have maybe conceptions about anarchism as bomb throws and so on. these were people from days of the french revolution, very interested and concerned with in governments that had too much power. it was an ideology reacting to that. there were certain anarchists that believed in something called propaganda of the deed. meaning that if you have one specific attack, it could prove a spark against the state, inspire other radicals, and so on. this was kind of a moment for these deeds, perhaps. if we are still talking about labor and capital dissent during the war, you should also know world war i is happening. i

about, ais bandied famous san francisco anarchist. he will later little church in the 1920's. -- he will later blow up a church in the 1920's. but that has been squashed as well. there was an anarchist very , an italiane time who would come to the united states and had all kinds of followers. he remained very coin even in his last -- very coy in his last days. he was questioned in boston harbor before he left. he was asked if he knew everything -- knew anything, and deniedined very coy and mooney's guilt. there were a couple of books that came out, and this is an image of the parade as we think of the whodunit question. there were a couple of books and the 1960's, one by richard frost and the other by curt gentry. they wrote about the german sabotage their he. germans weres, the going to blow up munitions and these kinds of things, and that it was a broader plot of the germans to create disorder in the united states. it is another theory, it is attractive for some folks. is another book about alexander that theyd goldman, somehow had

one name is bandied about, a famous san francisco anarchist. he will later blow up a church in the 1920's. so there is a theory he might have been responsible, but that has been squashed as well. there was an anarchist very famous at the time, an italian who would come to the united states and had all kinds of followers. he remained very coy in his last days. he was deported from the united states. he was questioned in boston harbor before he left. the bureau of investigation asked him all types of questions, if he knew anything and he remained very coy and denied mooney's guilt. when he was deported. there were a couple of books that came out, and this is an image of the parade as we think of the whodunit question. there were a couple of books and -- that came out in the 1960's, one by richard frost and the other by curt gentry. they wrote about the german sabotage theory. in other words, the germans were going to blow up munitions and these kinds of things, and that it was a broader plot of the germans to create disorder in the united states.

we saw the "san francisco chronicle" describing those folks as anarchists. people who typically show up at these protests and cause trouble? >> it's something we've seen in the past. i'll leave it to the groups to explain who they are and what they're about. in terms of today, one of the steps we took prior to this event was to set up some controlled access points as well. we also banned a number of items, prohibited a number of items that people could potentially use as weapons before this event. >> now we're looking at some of the video from earlier where some of the fights happened. can you tell us more about injuries? >> so, the two injuries that were reported to us, one involved an officer who was exposed to some, what we believe is tear gas. when a member of the crowd put it out into the park. another person was sprayed with what we believe is bear spray, or pepper spray type bear spray. both of those people have since been treated and released. >> officer, when we look at images, you don't see police getting involved and trying oh break up the fight.