And now for some "liberal bias"

[Trigger Warning for quoted/referenced violent rhetoric] Let's Get This Straight: Liss takes on the "Both sides are just as bad" myth, with specific attention to the recent shooting of Representative Gabrielle Giffords.

This is not an argument there is no hatred, no inappropriate and even violent rhetoric, among US leftists. There is.

This is evidence that, although violent rhetoric exists among US leftists, it is not remotely on the same scale, and, more importantly, not an institutionally endorsed tactic, as it is among US rightwingers.

...

Only progressives "infect" the culture, but conservative hate speech exists in a void.

That's what we're meant to believe, anyway. But we know it is not true. This culture, this habit, of eliminationist rhetoric is not happening in a vacuum. It's happening in a culture of widely-available guns (thanks to conservative policies), of underfunded and unavailable medical care, especially mental health care (thanks to conservative policies), of a widespread belief that government is the enemy of the people (thanks to conservative rhetoric), and of millions of increasingly desperate people (thanks to an economy totally fucked by conservative governance).

(All emphasis original)

Read the whole thing to be basically blown away by the collected facts. I don't know what Adam and Jamie would say, but I'd call that myth BUSTED.

For further reading and more relevant linkage, I'd like to direct you to Shakesville's Open Thread and News Round-Up on Tuscon Shooting.