I have studied such events and revolutions during economic hard times. The violence routinely comes from the LEFT, not the RIGHT, for the simple reason that the LEFT portrays themselves as the victims of the rich and the RIGHT. It does hand-in-hand with that philosophy that they are not to blame, it is always someone with more money that prevents them from rising up the ladder of material wealth.
I have been to Krakow. That main square is beautiful and it is a tourist spot. In Poland, it has just been discovered that the Kraków attacker, Michał Oksiński, was a radical left-wing activist, an antifascist and an anarcho-communist who mocked Christianity. Tusk’s government and the media tried to link him to right-wing groups, but it is now known that this is not the case. Everything could be leaked from Oksinski’s accounts, which have now been deleted. The question is, who deleted the attacker’s two Facebook accounts if his parents and his sister were found dead in their home?
