The free and vigorous urban press stimulates open and lively debate over political issues. In the state-controlled broadcast media, however, opposition and government critics have meager access. Broadcasts from South Africa are easily heard. The single television station has a limited audience, though there are a number of private radio stations. However, the long-time freedom of the news media was marred by several government actions this year. The government barred the private television channel from carrying a documentary about a white woman executed as a murderer. The station's editor resigned. The government also banned official advertising in the Botswana Guardian and Midweek Sun newspapers, and barred the purchase of these papers by government offices. The papers had reported allegations that the vice president had made unauthorized use of military aircraft.