""The Cost of a National Crime," "The Hell of War and Its Penalties," "Criminal Aggression"--titles of three pamphlets sent by Edward Atkinson, a founder of the Anti-Imperialist League, to American troops in the field in the Philippines, as a test of free speech. Postmaster Charles Smith declared the pamphlets "seditious" and had them removed from the mail."
January 1, 1970
https://en.wikiquote.org/wiki/Philippine-American_War