A 1950 propaganda film produced by the US Army Signal Corps mainly concerning the war crimes committed by the North Koreans. A 1950 propaganda film produced by the US Army Signal Corps mainly concerning the war crimes committed by the North Koreans. A 1950 propaganda film produced by the US Army Signal Corps mainly concerning the war crimes committed by the North Koreans. A 1950 propaganda film produced by the US Army Signal Corps mainly concerning the war crimes committed by the North Koreans.