These pictures are either of the Ukrainian police, not protesters, or show no indication of actually being in Ukraine. Also, Russian news is full of propaganda trying to show the protesters as the ones causing the violence. Anything from independent sources, such as Reuters or AP?
The same Berkut that captured, beated, took clothes and forced a man to dance naked in the snow, all while laughing and making fun of him. And left him bloody in the snow afterwards? In some other country that same Berkut would be prosecuted. I don't say I support violence without trial against them, but I can perfectly understand why would someone do it.
