Shooter incident at elementary school in Uvalde, Texas - 19 children and 2 adults dead

I think you are wrong. When the news shows stuff like that, it does have effect. It's unavoidable unlike a broadcast sanitized to protect our delicate sensibilities.

If there was one lesson learned from Vietnam it was, don't show the images. IDK which is more disturbing, the images themselves or the reason we don't see them anymore.

Agree. There was a similar response when national newspapers in the northeast started publishing pictures of the murders taking place in the south during the Civil Rights era, Emmett Till being the most well-known example but there were others.

The grotesque brutality of it changed opinions and motivated action.