'Lord Haw-Haw' (William Joyce) was Hitler's secret weapon of the airwaves. Nightly through the Second World War Joyce's nasal tones were transmitted to a delighted if sceptical audience. He had a large and enthusiastic following, who looked upon his catchphrase 'Jairmany calling' as the promise of comic relief as sure as that provided by Tommy Handley and the much-loved radio programme It's That Man Again (ITMA). Joyce, of course,...