FILE - In this Jan. 20, 1961, file President John F. Kennedy delivers his inaugural address after taking the oath of office on Capitol Hill in Washington. The son of Joseph and Rose Kennedy, 35th president of the United States, was assassinated in November 1963, at the age of 46, after serving less than three years. He was the youngest president ever elected and the first Roman Catholic. His book, "Profiles in Courage," won the Pulitzer Prize in history. (AP Photo, File)