Iran sidestepped a Friday deadline on a U.N.-drafted agreement that would ship much of the country's uranium to Russia for enrichment, saying it would prefer instead to buy nuclear fuel from foreign suppliers for a reactor to make medical isotopes.

Two of America's most important foreign policy thinkers during the tumultuous 40-year struggle with the Soviet Union are the stars of a new book -- "The Hawk and The Dove: Paul Nitze, George Kennan, and the History of the Cold…