Pink Floyd's iconic pig has been used extensively during the "Dark Side of the Moon tour", introduced on 6 September 2006, the opening night of the US leg, and since appearing at almost every venue. During the tour, the pig has often carried messages critical of the American government, Waters' socialist views, and the support of repressed Latin American populations, including indictments of discrimination and calls for the further prosecution of former dictators. A partial list of the pigs and messages featured at each show can be found at inflatable pigs on Roger Waters' tours.