What is the author's tone in Desert Exile: The Uprooting of a Japanese American Family by Yoshiko Uchida?

For its subject matter, Desert Exile's tone is relatively subdued. Desert Exile is the tale of an upper middle-class Japanese American family who were "evacuated" by the United States government, their government, because of their race. During World War II, Japanese Americans were placed in concentration camps because it was believed that they might be spies for the Axis Powers. Yoshiko constantly emphasizes the deep loyalty her family, the Uchidas, felt towards the United States. As Nisei, Keiko and Yoshiko tried to become as American as they possibly could. Given that Yoshiko had spent most of her life attempting to become American, her sense of betrayal at being imprisoned must have been profound.