https://snyder.substack.com/p/political-violence
http://www.ips-journal.eu/topics/human-rights/article/show/lets-not-lose-our-thread-2155/
https://ec.europa.eu/commission/priorities/deeper-and-fairer-economic-and-monetary-union/european-pillar-social-rights/european-pillar-social-rights-20-principles_en
https://www.hrw.org/news/2017/05/15/eu-should-step-pressure-poland