Actually, this is not really the best approach. Petitions and threats of banning something rarely do any long term good. What is needed is a heightened sense of awareness and the realization that "violence in video games alone is not bad or evil" Violence is a part of life and is a part of the human psyche. Where the focus needs to be is on learning what is appropriate and inappropriate when it comes to finding ways to express those urges. A steady diet of anything can and does affect us. Whether it be food we put in our bellies or thoughts and ideas we put in our head. For those interested in some well documented facts on the effects of violence and its affect on people, I recommend Grossman's "On Killing".