There has been no official response to Dr Afridi's allegations, but the Pakistani authorities have always insisted that they treated him the way any country would someone found working for a foreignspy agency.
Japan's secret service, perhaps influenced by stories of Mata Hari, a dancer who became a spy in the first world war, asked Miss Nakamura to spy on a foreign client.
Some of those convinced that Ms Zatuliveter is indeed a spy think the Russian foreign intelligence service, the SVR, recruited her only after she started working in London.