Are you talking about the debate with Dean? He didn't seem defensive to me, and was quite feisty and relatively upbeat. I don't remember any comments about Zionism, either. He does seem to rely on stock phrases and generalities more than he used to, which bugs me, but I guess he figures that's the only way to get his message(s) across via the short-attention-span media. Or else he's just had to repeat himself so many times that he's sometimes on auto-pilot.