Worth reading through these. A lot of people with mental illness shot just for holding guns or knives or "driving toward police." Recently, an au pair we know (from Germany), had a gun pulled on her because she reached into her purse to get her ID when she was pulled over. The fact that Maryland's finest are totally mental and she could get killed for doing that never occurred to her.
On the flip side, if there really is a threat, police officers have standard training which makes it clear that they have less than three seconds to react, before they are killed. Bringing their weapon to a ready state, actually increases the time that they have to react, and lets them make more rational decisions.
Or one could argue that it reduces the amount of time they spend rationalising the situation, which could result in a "knee jerk" emotional overreaction to any perceived threat.
I'd argue we've seen so many completely unwarranted shootings in the last few years due to: cellphones, reaching for ID, hands in pockets, etc, that maybe police should be taught to slow down and consider the threat, not speed up, and start blasting on a whim.
The number of police officers dying on the job hasn't decreased with these new higher risk tactics. They're just killing more members of the public. It has stayed roughly around 50/year shot + 2/year from stabbings for the last ten years.
Most police officers die due to vehicle crashes/collisions and illness. None of which is resolved by shooting more members of the public.