Xiang Longwan, son of Chinese Prosecutor Hsiang Che-chun of the International Military Tribunal for the Far East, speaks at the screening ceremony in Washington, the United States, on Nov. 15, 2018. A three-episode documentary providing rare footage of the Tokyo war crime trials after the Second World War was aired at the U.S. National Archives in central Washington D.C. on Thursday night. (Xinhua/Liu Jie)