Contempt and amazement.

Matt Taibbi: Sometimes in journalism I think we take the objectivity thing too far. We think being fair means giving equal weight to both sides of every argument. But sometimes in the zeal to be objective, reporters get confused. You can't report the Obama tax plan and the Romney tax plan in the same way, because only one of them is really a plan, while the other is actually not a plan at all, but an electoral gambit.

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The proper way to report such a tactic is to bring to your coverage exactly the feeling that Biden brought to the debate last night: contempt and amazement. We in the press should be offended by what Romney and Ryan are doing – we should take professional offense that any politician would try to whisk such a gigantic lie past us to our audiences, and we should take patriotic offense that anyone is trying to seize the White House using such transparently childish and dishonest tactics.