Hmm, yeah, I suppose my position on it was under the assumption that the article was correct and that world leaders would take offense to their issue being poked fun at. Wouldn't be a good idea to do it if they were, though, for future diplomatic reasons with the US - although I also suppose that at this point, Bush gives even less of a flying !@#$ than before, being a lame-duck.
I do agree that if the other leaders were offended by it, they should lighten up.