My parents and I were immigrants after WWII from Hungary. The current police tactics are the same that were used in Hungary during the Hungarian Revolution against the people by the Communists. I am sure that Putin has taught Trump well. In order to quell an uprising you send in troops/police from an outside area. Do not use the police who know the people, they will be kinder and less willing to use force. The tactics to utilize the National Guard and police from the federal prisons is the same one. I believe that the majority of violence continuing to be perpetrated by the police on peaceful demonstrators comes from outside forces.