Final answer:
Fred Korematsu, a Japanese American internee, fought the constitutionality of internment during the war and had his conviction overturned thirty years later. With the assistance of the American Civil Liberties Union, he appealed his arrest all the way to the Supreme Court in 1944, but his conviction was upheld. However, in 1983, a federal court reversed his conviction based on new evidence.
Step-by-step explanation:
Fred Korematsu, the son of Japanese immigrants, was the Japanese American internee who fought the constitutionality of internment during the war and had his conviction overturned thirty years later. Born in Oakland, Korematsu refused the government's order to report to a relocation center, which led to his arrest and imprisonment. With the help of the American Civil Liberties Union, Korematsu appealed his arrest to the Supreme Court in 1944, but his conviction was upheld. However, in 1983, a federal court reversed his conviction after new evidence emerged showing the absence of any Japanese American spies.