The Bureau of Secret Intelligence (Office of the Chief Special Agent) was founded in 1916. The U.S. Department of State's Bureau of Secret Intelligence, later known as the Office of Security (SY) and now as the U.S. Diplomatic Security Service, was also known as U-1, an off-the-books adjunct to the Division of Information. The origins of the U.S. State Department's Diplomatic Security Service (DSS) goes back to 1916 with a handful of agents assigned special duties directly by the Secretary of State (SECSTATE), Robert Lansing. Leland Harrison and William Yale