About 20 years ago, within a mile of where I grew up, a couple of shooters ambushed a pair of our local police. There is a park named for those slain officers near that very spot. I drive past it monthly.
Lately, I hear of civilians telling officers on duty, "I've got your back", when the patrolman is pumping gas or makng a routine stop. Not necessarily armed, but with the random assaults on LEOs--an extra pair of eyes is sometimes appreciated.