BARE RUINED CHOIRSBush's magic touchhttp://www.washingtonpost.com/wp-dyn/content/article/2007/05/19/AR2007051900212.htmlFormer President Carter says President Bush's administration is "the worst in history" in international relations, taking aim at the White House's policy of pre-emptive war and its Middle East diplomacy.The criticism from Carter, which a biographer says is unprecedented for the