Where do you study? http://levitra.in.net/ levitra 20mg Following Monday's mass shooting at the Navy Yard, some commentators have revived arguments that violent games contribute to gun massacres. But any proposals for legislative action on video games face significant legal hurdles, not to mention considerable doubt in the scientific community that such a link even exists. That means fans of games such as the recently released Grand Theft Auto 5 – which is expected to sell 20 million units by March - can likely rest easy.