The Swinburne study seems to define "stable" as non-hyper. So, considering that about 7% of children are currently diagnosed with ADHD, presumably about 0.6% of America's young people (percentage of ADHD-diagnosed kids addicted to games) pose a potential threat to society. A small percentage no doubt, but with a reported 73.5 million children in the US in 2005, we could be living among something like 450,000 latent killer gamers -- hit the panic button!
[Disclosure: blogger's math skills have not been evaluated since December 1999; some calculations may be inaccurate. Call for panic still very real!]
Read - Poll Indicates Game Addiction on the Rise Among Youth
Read - Study Says Stable Kids Unaffected by Game Violence