Korematsu v. United States: The U.S. Supreme Court Upholds Internment
"One of the most important of the legal challenges to the internment policy was Korematsu v. United States, a case brought by Fred T. Korematsu, a Nisei (an American-born person whose parents were born in Japan). Korematsu had been arrested by the FBI for failing to report for relocation and was convicted in federal court in September 1942. The U.S. Supreme Court, in a sharply divided 6–3 decision, upheld Korematsu’s conviction in late 1944."