... Point University, teaches law enforcement officers around America, as well as the FBI, Texas Rangers and Green Berets about the psychology of killing. He also teaches medical and mental health professions how to deal with and prevent killing. He has been a specialist witness at several murder trials, and has written a number of encyclopaedia articles on violence and antagonism. Grossman is on a mission to limit children's access to violent media, particularly computer games. He said he does not want or expect to end violence in the media, he just wants to see children denied access to the violence. "Simply enforce the rating systems," he said. He said that a major university recently conducted a study in which researchers performed state of the art brain scans on children participating in different activities, reading a book, hearing a story, watching a violent movie and playing a violent video game. ...

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