>if the police show up anywhere, be it an Occupy protest or a carjacking, there is likely to be mayhem and bloodshed.
If you grew up in the US (I can't speak for other countries), I think most people, despite the media coverage, would say otherwise. There's way too many cops for this to even make sense. If even 1% of police interaction ended in a death, there would be literally millions of people dead by cop every year.
>chickenshit mentality where no risk to an officer's safety is tolerated ever.
Again, I'm not sure this is true. Are cops selfless superhuman crime fighting machines, charging heedlessly into danger? Of course not, and it's unreasonable to expect them to be. I would go so far as to argue we don't want heros. Heros are a band-aid fix, a substitute for good training and careful decisions made possible by always selfless, often reckless, decisions. We shouldn't be putting officers in a situation where they need to step up to become a hero.
Of course, there is the unpredictable event that necessitates a hero, but we should be working to reduces these edge cases.