Last year a BBC documentary about the war in Bosnia showed the town of Travnik besieged by Bosnian Serbs. Conditions in the town were dismal; hunger and fortitude were the order of the day. The programme was watched by 1.8 million viewers, none more attentive than a Mrs Willis of Bath, who wrote to the broadcasters complaining about the amount of smoking in the programme. She wanted to know why the inhabitants of a dying town could only discuss their problems in a cloud of smoke.