Information emerges about some troubling "far-right" associations of Jerod Lee Loughner. I put far right in quotes not to minimize that element by any means but because among his passions, at least according to this initial information, is anti-Zionism, a sentiment which is also sometimes associated with the left.
The possibility of an anti-Semitic dimension to the attack on Rep. Giffords hadn't occurred to me before now. Obviously that would dramatically complicate any effort to associate Loughner with any one political bloc, as many of us seem driven to try to do. If you want to read thoroughly uncivil and even bloodcurdling rhetoric, go to any blog where the Middle East is discussed, such as Matthew Yglesias' (I refer not to his language but to that of some of those who leave comments).