Fundamental changes are taking place in the historical policies of the United States with regard to human rights, our role in the community of nations and the Middle East peace process -- largely without definitive debates (except, at times, within the administration). Some new approaches have understandably evolved from quick and well-advised reactions by President Bush to the tragedy of Sept. 11, but others seem to be developing from a core group of conservatives who are trying to realize long-pent-up ambitions under the cover of the proclaimed war against terrorism.