This year marks the 50th anniversary of the fall of Saigon. Netflix is offering a five-part documentary series titled "Turning Point: The Vietnam War," directed by Brian Knappenberger. The series includes never-before-seen footage of the war from the CBS archives. Also included in the documentary are interviews with participants in the war, both from the North and the South. One of the most frequent voices heard during the series is Columbia University professor Lien-Hang Nguyen, born in Vietnam in 1974. She is the youngest of nine children and was brought to the United States by her parents in 1975. Prof. Nguyen is the author of the 2012 book "Hanoi's War: An International History of the War for Peace in Vietnam."

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