original_query: What is the significance of the Hirabayashi v. United States case?
query: What is the significance of the Hirabayashi v. United States case?
answer: The Hirabayashi v. United States case is significant for two reasons: historically, it vacated the WWII convictions of Japanese American civil rights leader Gordon Hirabayashi; legally, it established the standard for issuing a writ of coram nobis in the Ninth Circuit.