IN this, I tend to agree with Webb, and Andrew's "US/UN same thing" remark emphasized the dichotomy.
It's interesting how the "UN" is viewed. Webb points out an article basically criticizing the UN's (and directly the US's) lack of involvement in Rwanda. The article comes from a US organization in Washington, DC.
There is a growing feeling that the good that the UN does is far outweighed by it's inaction, and like Webb points out, many times, if the UN doesn't act, people point will point and blame the US if IT doesn't act.