With the recent shooting at a school in Newtown Connecticut and the shooting in Aurora Colorado violent video games are in the news again. The old men in the old media are blaming violent video games as they always do when a shooting hits the national news.
Violent video games have been the target of old media and conservatives for years. They will spout dubious studies and claim there is a link. They will blame any act of violence on violent video games even if the perpetrator never played a video game in his life.
In 1954 Fredric Wertham published the book Seduction of the Innocent in which he blamed comic books for juvenile crime. From his book arose the comics code which castrated the comic book industry for decades. Decades before the film industry suffered similarly. In 1930 the Hollywood studios instituted the motion picture production code which like the comics code castrated the film industry. The Hollywood studios instituted it because of a growing moral panic about immorality in films and the film industry feared the government would step in and regulate the morals of the film industry them selves.
Both the comics code and motion picture production code restricted or out rite banned violence, sex, gore, the super natural, criticism of authority, how criminals where depicted, drug use (even if it was an anti-drug message), depictions of homosexuality, depictions of relationships between people of different races, etc.