Let's bring up a smaller part of this discussion that is, personally, more interesting than "RRAGH POLITICIAN NOT LIKE GAEMS!" The rating system.
Anything E10+ and higher would have to give a warning label for the excessive violence inside. Here's the thing, though: A good chunk of games that fall into that category might not contain excessive violence at all.
Examples? You bet I have them!
DiRT 2: T (Lyrics, Mild Suggestive Themes) So, playing rock n' roll and maybe one or two girls in bikinis.
3D DOT GAME HEROES: E10+ (Mild Cartoon Violence) Occasionally someone will be bopped in the head for laughs.
Tony Hawk series (any entry'll do): T (Lyrics, Blood, Violence, Comic Mischief) Falling off your skateboard leaves road rash on your player character? That's considered violence. And "Comic Mischief" is apparently the proper term for "Jackass-like stunts and activities".
Rock Band/Guiitar Hero series: T. See DiRT 2.
Puzzle Quest Galactrix: E10+ (Alcohol Reference, Violence Reference) That's right. Just talking about someone getting punched is considered a little too aggressive for kids 9 and under in America. Better sit them in front of some Ninja Turtles reruns instead, those fistfights are appropriate for kids ages 7 and up.
World Series of Poker 2008 edition: T (Language, Simulated Gambling, Suggestive Themes, Tobacco Reference) Okay, now I can understand why talking about beer, cigarettes, and gambling might be something you'd want to keep away from especially young children. But suggestive themes? Just how much time do ESRB agents spend measuring the cleavage shown in a game to determine the suggestiveness of the end product?
Side note: captcha is an ad for Little Caesars pizza. No lie.