Officials investigate Mussolini bus sign ROME, April 30 (UPI) -- Officials with a Rome transport company said they were investigating after a display honoring World War II dictator Benito Mussolini was photographed on a bus. The officials, with the ATAC company, said they were shown a picture of a bus display reading "Onore al Duce," which means "honor to Il Duce" (Mussolini's nickname), ANSA reported Monday. The company said whoever was responsible for the display, if identified, will be reported to police for the "criminal" act.