The Washington Post has an article here describing the effort of the video game industry to publicize the rating system they use to describe the level of violence in the games. This is an effort to convince parents that kids can play these games safely.
I do think a ratings system is good; I’m just much more worried about other aspects of video games. Do they push out reading? Do they push out games kids make up and play themselves? Do they push out bike-riding and neighborhood pick-up sports games? I’d love to see some research on these areas.