Police Irresponsibility 101: No Excuses!

SEE HERE This is how police are acting these days. Knock on your door. Don't identify themselves and shoot you when you open the door. The obvious questions are 1) Why didn't you identify yourself? and 2) Why did you have a gun in your hand in the first place? — Did you have any legitimate reason to expect armed hostility? Given what's been reported about this I don't think there are any very good answers to these questions.