Allan Segal act as a producer on the investigative current affairs programme World In Action. Over the next five years he produced and directed over twenty films, all over the world, and often in hostile circumstances necessitating the use of hidden cameras and undercover filming. In 1976, Segal and a small film crew risked life imprisonment by posing as tourists and illegally filming in Brezhnev's USSR. Using one of the first ever amateur 8 mm film cameras, they shot "A Calculated Risk", the story of Jewish refusenik Natan Sharansky (who went on to become Deputy Prime Minister of Israel) and his campaign
Bernard Natan argue that the various actors in question are not Natan and that accusations at Natan's trial and in Paris-Match connecting him to the adult film industry were false. "Natan", a 2013 documentary film, compares stills from the adult films attributed to Natan with official headshots and shows that several pornographic actors have been mistaken for Natan but are not him. Joseph Slade now admits there is room for doubt over whether Natan worked in pornography at any time after 1910. World War II broke out while Natan was in prison awaiting trial, and Nazi Germany conquered France. After Natan's release