I'm not so sure that the United Nations as it is currently structured is actually a force for good in the world, and I'm pretty sure that Kofi Annan and his son were mired in the oil-for-food scandal and she be held accountable. That being said, I think this comment from Joe Conason in the New York Observer is fair.

To anyone familiar with the moral standards of Congress, the assault on Mr. Annan is absurd. The Republicans demanding his head recently rescinded their own rule requiring an indicted member to relinquish leadership. They aren’t troubled when their own relatives, including Tom DeLay’s brother, get rich in the lobbying business.