In this Friday, Sept. 21, 2012 photo, Vu Dinh Son, left, cries as he is given a diary and other mementos of his father by army officer Nguyen Xuan Nang in northern province of Hai Duong, Vietnam. Son was just two-year-old when his father was killed in fighting the American army in its doomed campaign in Vietnam. On Friday, Son was handed the wartime diary written by his father that had been returned by the United States, giving him a fresh glimpses of a man he never knew. The pocket-sized book was originally brought to Vietnam in June by Defense Secretary Leon Panetta, who was handed a bundle of letters written by an American soldier that had been kept in Vietnam in an exchange that symbolized closer ties between the two nations. (AP Photo/Tran Van Minh)