Do you want to wear an on-body camera while on duty?
The rash of police murders and assaults this year is small compared to the body count inflicted on cops during the late 1960s and early 1970s. That era's law enforcement blood bath led to the adoption of better police tactics, more comprehensive police training, and the adoption of ballistic armor as standard police equipment.
Each year the FBI compiles a special report on law enforcement officers killed and assaulted (LEOKA). Although it's a grim topic, much can be learned about the behavior of cop killers and the cops who are feloniously killed by analyzing the source data.