Even under current law, mental illness can become a label for unconventional political beliefs. Remember Brandon Raub, the Marine Corps veteran who was forced to undergo a psychiatric evaluation in Virginia last summer based on his conspiracy-minded, anti-government Facebook posts?The malleability of mental illness was also apparent at a 2007 debate among the candidates for the Democratic presidential nomination. After seeing a YouTube video in which Jered Townsend of Clio, Mich., asked about gun control and referred to his rifle as "my baby," Joseph Biden said: "If that's his baby, he needs help. ... I don't know that he is mentally qualified to own that gun. I'm being serious."So perhaps excessive attachment to your guns should be grounds for taking them away. Biden, by the way, is in charge of formulating the policies the Obama administration will pursue in response to Lanza's horrifying crimes.