WASHINGTON, Dec. 14 - President Bush on Tuesday bestowed the nation's highest civilian honor, the Presidential Medal of Freedom, on three of the central architects and executors of the war in Iraq, one of the president's strongest efforts yet at putting a formal stamp of success on a war whose outcome is still a question. The recipients were Gen. Tommy R. Franks, the overall commander of the invasion of Iraq; L. Paul Bremer III, the chief civilian administrator of the American occupation of the country; and George J. Tenet, the longtime director of central intelligence who built the case for...