Police: Maybe Watch Your Ps & Qs?

I've been wondering about some incidents of apparent police "brutality" lately. There's been two in the last week that come to mind. One, in South Caroline recorded a cop shooting a running black man in the back. Another, down in San Bernadino where some sheriff deputies catch a guy they were chasing and beat the daylights out of him.

What puzzles me is why they're not more cognizant that someone might not only be watching, but recording them, and act accordingly? More and more often we're seeing police accounts being discredited because someone was nearby with a video camera of some kind. When you get into such a situation, wouldn't it be in the back of your mind that you're not alone and likely being recorded? Especially those San Bernadino sheriff's deputies that had a news helicopter over them. Sheeesh!

It might well be an ingrained part of the culture: Kick ass, deal with the fallout later? But there's probably something not so sinister also involved: Emotions run high during confrontations and I suspect that leads to tunnel vision where all the cop is thinking about is the "fight" and his target?

Still, when you have a news helicopter flying above you, wouldn't it get your attention?