On Tuesday, April 2, 2019, the American Civil Liberties Union and the Knight First Amendment Institute at Columbia University filed a lawsuit in the United States District Court, District of Maryland, on behalf of five former federal employees challenging the constitutionality of prepublication review. Former government and intelligence agency employees must submit manuscripts and drafts for government review before publication due to a lifelong obligation to keep national security secrets for as long as the information is considered classified by the government. The lawsuit alleges violations of both the First Amendment and the Fifth Amendment.