Although I am not a proponent of gun use in the least bit, I do believe that police officers should be routinely armed. They could get called out for something that sounds mundane that turns into a very dangerous situation. An officer, whose duty is to protect and serve, should have the tools necessary to do so. With that said, I believe that actually shooting a gun should be a last resort.
I am all for the police being safe when they go out on routine calls, but arming the police with military grade technology seems over kill. It seems like a very short jump to a militarized police force that doesn't serve the people but oppresses them. We have to be careful with the line of protection and going too much.