Are governments (local, state, federal, or all) doing enough to address reported problems of police brutality?

Are governments (local, state, federal, or all) doing enough to address reported problems of police brutality?(B) What has changed about this issue over time, and what can and/or should be done from a public policy standpoint to address the issue?(C) What do you believe will be the long-term impacts of current tensions between police/police departments, policy makers, and citizens on policing in the United States?