There are plenty of films and books depicting the horrors of the Vietnam War. But most look at it from the American perspective. Author Viet Thanh Nguyen took the Vietnamese position in his tragicomic novel The Sympathizer. The main character is a half-European, half-Vietnamese spy placed in Saigon at the end of the war. Nguyen himself was only four-years-old when his family fled Saigon in 1975 for the United States.