The biggest problem is the hypocrisy of the US goverment and it's refusal to accept that forcing another nation to surrender to it's demands whilst they themselves do not adhere to the same rules of majority rule is wrong.
The idea that the US is somehow exempt from the rules everyone else wants implementing (Kyoto) just shows a lack of diplomacy and an arrogance born of ignorance. The largest stockpile of weapons is in the USA yet they try to dictate to others what weapons they may have (under who's authority, I don't ever remember anyone nominating the US as the police force of the world).