Flutterby™! : Violent cops make violent protests.

Research Says Violent Cops Cause Violent Protests

That’s one of the findings in “New Directions in Protest Policing,” a 2015 paper that reviews decades upon decades of police history and the conclusions of multiple separate commissions. Police that dress like they’re going to war, who try to control First Amendment expression rather than facilitate it, and who act in arbitrary ways can inflame violence and jeopardize their own safety and that of the public.