A photo by Dorothea Lange of Kimiko Kitagaki, tagged and numbered like the luggage surrounding her, as she and other Japanese Americans awaited their forced removal to an internment camp for Japanese Americans, most of them citizens, in World War II. The photo is in the National Archives, and is available for sharing online at Wikimedia Commons.
It CAN happen here. It HAS happened. And we refuse to learn from our barbarism in the past.