Originally posted by rmsharpe
The United Nations does not have supreme legal authority over the United States, so no "law" has been broken.
Don't show your ignorance - your country has signed the charters and treaties that found the UN and is bound by the laws that they entail. In fact, US lawyers were central to the drafting process, it's a bit ironic to be compaining about the terms! The US has voluntarily surrendered a degree of its sovereignty.
This is true every single time any country signs any treaty - until such time as that treaty is abrogated it constrains the signatories from acting freely.
A moment's thought would show you that this must be the case, otherwise all treaties are completely useless bits of paper.
So sure, the US can abrogate the UN treaty but until you do you are bound by its terms.
If you are arguing enforcement, that is a different issue - many laws exist which are tough to enforce, it doesn't mean there isn't a law in place.
If this is not the case then there are no constraints on international action, all treaties including the Geneva convention, etc. are invalid and anyone can do what the hell they like governed only by national law.
International anarchy might suit the US given its relative power in the world, maybe China and a few rogue states too, but it sure as hell won't suit the rest of us....