On 13 August 1971 Berlin has been divided for ten years. The Wall has become a tourist attraction and popular backdrop for films, with its freshly raked death strip, signal fences, guard dogs, carpets of spikes and watchtowers. Almost 100 people have perished trying to get over to the other side. East Germans try to adjust to life with the Wall. Gert Roth talks about life in the GDR. A huge propaganda campaign is launched to mark the Wall’s 10th anniversary and justify its existence