I haven't seen any of the more questionable video games some of you folks have mentioned. It is suggested that Civ IV and Rise of Nations, both of which I do have, are less realistic than the newer games, but in Rise of Nations, especially, unless you take the defensive mode which is boring, the object is to conquer the world. So your armies mow down everybody they see, military and civlian alike. The civilians scream as you kill them. Does playing that game have a negative effect on me? Not that I can tell. But then I am not a kid and I don't play the game endlessly for hours.
They are very different games. I loved RON back in the day. But never would consider it violent in any way. It's a real time strategy game with implied rather than actual violence. Civ is similar in ways.
The first person shooters are where the real violence is. Call of Duty games are essentially war simulations that get more realistic all the time. They are violent and deal with very adult themes. The airport scene I alluded to earlier has a very bad Russian mob boss leading a team of terrorist through the Moscow airport and slaughtering everyone in sight. It's very disturbing, but also has a very black and white morality to it - the backdrop of WHY going to war is justified.
I agree with Katz that the lack of moral compass, rather than the actual violence is the problem.
Oh, and I don't think Call of Duty games should be played by anyone under 18 - ever.
BTW, you ever play Empire Earth? Similar to RON but without the population caps.
Empire Earth II - Wikipedia, the free encyclopedia
Lousy graphics, brilliant game play.