I wouldn't care if it was anger.
If somebody is telling lies at the rate that Kerry was slinging them tonight, he's got a reason to be angry.
I think it's called "righteous indignation"!
While I agree that righteous indignation is really nothing to be ashamed of, I simply don't think the president was angry.
His answers were too calm and focused for him to somehow have been simultaneously, disgustedly, emotionally angry.
It's a stupid charge.
Like he said (very calmly) at one point in the debate: "I'm a calm guy."