How much PSA gore is too much?

A few years ago, disturbing posters like these were placed on car windshields in New Zealand to encourage safe driving near schools. They probably had most drivers, whether hell on wheels or not, feeling sick to their stomachs. Raises the old question of how far PSAs should go in dramatizing the consequences of reckless behavior. Said one victim support group of the computer-generated ad: “We would like to see those kinds of images not portraying the victim in that real close-up and degrading way.”