Is there any particular reason why a clear edge-case scenario should be our basis for arming police departments, which spend most of their time solving mundane domestic disputes, pulling apart drunken fights and responding to break-ins where someone's Playstation was stolen? We should orient policing towards deescalation based on what they usually face. If their most common problem is a drug addict high on PCP, they don't need a gun, they need proper training and, perhaps, a taser.