The Supreme Court ruling in Korematsu v. United States upheld the constitutionality of flag burning as a form of free speech Answer A: flag burning as a form of free speech A the internment of Japanese Americans as a wartime necessity Answer B: the internment of Japanese Americans as a wartime necessity B prohibiting Japanese workers from immigrating to the United States Answer C: prohibiting Japanese workers from immigrating to the United States C private prayer in public schools Answer D: private prayer in public schools D excluding Japanese American children from California public schools