Judge of the US Court of Appeals for the Ninth Circuit
Con to the question "Do Violent Video Games Contribute to Youth Violence?"
"In sum, the evidence presented by the State does not support the Legislature’s purported interest in preventing psychological or neurological harm. Nearly all of the research is based on correlation, not evidence of causation, and most of the studies suffer from significant, admitted flaws in methodology as they relate to the State’s claimed interest. None of the research establishes or suggests a causal link between minors playing violent video games and actual psychological or neurological harm, and inferences to that effect would not be reasonable. In fact, some of the studies caution against inferring causation."
Majority opinion in Video Software Dealers Association v. Schwarzenegger, Feb. 20, 2009