The Arizona tragedy is being covered quite extensively, so not to go on and on, but this is well done:

No One Listened to Gabrielle Giffords

While the article does engage in pointing fingers -- what many on the right are bemoaning as unfair, and some, ridiculously, as "blood libel" -- it does so in more than one direction, and acknowledges something obvious I hadn't really thought about: that the current rabid antigovernment radicalism on the right is as dangerous as the same on the left in the late 1960s.

The difference now, full stop? Mainstream media outlets for the radical right that legitimizes it, and a major party that is an apologist for it.