* Must watch: Jon Stewart on the Tuscon shooting. Solid gold.
* Paul Krugman on the climate of hate.
* Dana Milbank wonders if this will be a McKinley moment.
* Bob Schieffer on toning down the rhetoric.
* Analysis: on the political climate and lawmakers' security.
* New world order: Slate looks at the immediacy of the web reaction. (This was the part I couldn't get over.)
* Arizona has been steeped in us-vs-them politics for some time now.