Not nearly enough..they have become an para-military occupation force to keep the rabble in line, the rabble being anyone that doesn't go along with those in power...many if not most are nothing more than domestic soldiers, automatons, that just follow orders operating under very broad rules of engagement that permits, no condones, excessive violence and illegal acts...no one should be killed unless there's absolutely no alternative but to do so to defend self or others...it's a risky job to strap a gun to your hip, but if you chose to do it, then you have to assume certain risks like it or not, fair or not, socially acceptable or not... it's what you chose. I don't want to die either and if I die by any number of other accidental ways, statistically more likely than police being killed, that's just the way the cookie crumbles...no guarantees in life...if you truly choose a life of service, as a cop, then do it right, do it honestly, do it with conviction, and stop whining and man up.