Multiple choice 1944 Supreme Court Case that ruled that the Internment of Japanese was legal Brown v. Board of Education Plessy v. Ferguson Dred Scott vs. Sandford Korematsu vs. US Reveal answer Fill a bubble to check yourself D Correct answer Explanation Korematsu v. US was the 1944 Supreme Court case that upheld the constitutionality of Executive Order 9066, which authorized the internment of Japanese Americans. The other cases listed deal with civil rights (Brown, Plessy) or slavery (Dred Scott).