I've never understood why all citizens are expected to give deference to Police at all times, when the requirements for becoming a police officer are less strenuous that the requirements to become a Scuba instructor. The job doesn't exactly exact the "creme de la creme" of talent either, and it's even worse recently because no decent human being wants to apply for the job and be hated by everyone for working with these jerks.
Cops in the US are going to have to face the facts. They are going to lose authority, a lot of it. They've overplayed their hand, and if the NYPD is any example it only takes a tiny incident to send them cowering into submission should they decide to become thugs again. It's either that, or you are gonna start see bonnie and clyde like killing sprees of law enforcement officers, and the public will eat it up, just like they did in the 30s when the cops were thugs that protected the banks. It can get there again, and people act like this is unprecedented. Cops have been abusing their authority and having it curtailed for the history of this nation. It truly is a profession that just attracts awful people.