On the 18th of May, activists holding a sit-in and rally at FCC headquarters for net neutrality noticed several folks trying to pose as anarchists, with signs calling for banning far-right websites. This message was in direct conflict with net neutrality.
The fake protesters turned out to have a camerman with them from Jack Posobiec's "Rebel Media" crew, and did a very poor job of posing as an anarchist black bloc. Jack Posobiec is an infamous liar and troll, known among other things for planting someone with a sign calling for raping Melania Trump in a left wing protest. This is one way Trump supporters create "alternative facts" and actual fake news.
Raw clips by Media Matter at https://www.mediamatters.org/blog/2017/05/19/Did-alt-right-hoaxster-and-troll-Jack-Posobiec-plant-fake-protest-signs-at-a-net-neutralit/216560 Editing to point out Rebel Media cameraman and contrast real and fake protesters by DC Direct Action News