I think Glenn Greenwald - who has less fear than any journalist I know in Washington - is onto something important here:
Those who giddily support not just civilian deaths in Gaza but every actual and proposed attack on Arab/Muslim countries -- from the war in Iraq to the Israeli invasion of Lebanon to the proposed attacks on Iran and Syria and even continued escalation in Afghanistan -- are able to do so because they don't really see the Muslims they want to kill as being fully human.
The inability on both sides to see Jews and Arabs as equally and indistinguishably human before they are Jews and Arabs is at the heart of the problem. In a contest between Israel's flawed democracy and Hamas's theological murderousness, I see no moral equivalence. But Israelis and Arabs demand exactly the same respect as human beings, every single one, including the "worst of the worst". A refusal to grapple with the moral costs of this conflict, and a glib dismissal of the terrible human carnage now being inflicted by Israel (and paid for in part by Americans) is a sign of moral unseriousness. But it is the same mindset that can authorize the torture of human beings and see it as "coercive interrogation" only when Americans do it to Muslims.
And when I read Michael Goldfarb, I become more and more aware of just how disgusting the McCain campaign was; and how lucky we are to have removed these thugs from office.