In a prior column, I wrote about the novel, “Allegiance,” in which author Kermit “Kim” Roosevelt III explored through fiction the three famous cases challenging the internment of Japanese Americans — Hirabayashi v. U.S., Korematsu v. U.S. and Ex Parte Endo.The Korematsu decision, written by Justice Hugo L. Black, found the exclusion orders and need to protect against espionage outweighed the individual rights of Fred Korematsu. Korematsu has never been formally overturned, despite the …