Weren't there scientists who worked for Phillip Morris who were still insisting as late as 1992 that smoking causes no ill health effects whatsoever?
I think they know more then what they tell us... <br />
also we will find out in few years what damage mobile phones cause.... and microwave food...etc<br />
You can notice that children become more violent after playing violent video games without neurologist & psychologist intervention.
I'm guessing people who are influenced by video games are pretty unstable to begin with. Had it not been the video game, it would be something they saw on TV, a song or some violent act the voices in their head told them to commit. <br />
Healthy people,(the majority) are unaffected, but yeah there may be an extremely rare percentage that will go out and do something stupid to mimic what they see in a game.