Woman holding flower pepper sprayed by a Police officer in Minneapolis/St Paul

http://www.indybay.org/uploads/2008/09/01/pepper.mpg

My reaction was "Why don't they have serial numbers on their helmets ?"

My reaction to my reaction was "duh. They want to be able to commit acts of unprovoked violence with their faces hidden."

So why don't citizens require police riot gear to prominently display their badge number ? Do most of us want them to be free to commit unprovoked acts of violence against peaceful people who get on their nerves ?

Do I really want to know the answer to that question ?