We have three Xbox consoles in our home and three copies of COD MW2. I play with my two sons online. The issue is not with the game but with how children are raised. There is just as much violence on TV, albiet not from a first person perspective. My sons know the difference between reality and games. THis is no different that when we were children playing war with plastic machine guns.. It is simply on a game console instead... For that matter, two years ago, we all were playing the forst modern warfare. There have been no negative changes in my childrens behavior... However, I can promise you that there are children out there being effected because the paents instead of explaining what is real and what isn't... What is ok, and what is not ok... Use the Xbox as a babysitter, and their child gets so engrossed in the game, that they become a part of the game and I would bet, that it would cause agressive behavior as a result. Any gamne is ok, as long as the parent watches over... Carefully.... I am however, oposed to games that theach children that it is ok to steal cars, beat up people, and be a pimp like a series currently available for sale.... War is an unfortunate part of life, and this has brought a fear of war to my two sons as they se how graphic and horrible it can be..