Russia is boasting that a long term spy in Nato country Estonia spilled secrets to Moscow from Britain's MI5 secret service and other Western intelligence agencies. His espionage meant that the KGB knew the scale of intelligence activities by the American National Security Agency in Europe long before Edward Snowden's disclosures, it was alleged. Soviet-era KGB officer Uno Puusepp was allowed to join Tallinn's KAPO secret service after the break-up of the USSR - and during at least a decade and a half as a double agent for Moscow, he went on to do significant damage to the UK, US and other European Union allies, claimed the documentary.
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Russia claims ex KGB agent Uno Puusepp was a double agent for them
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Kremlin says he joined Estonia's KAPO secret service after USSR break-up
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He did serious damage to UK, US and other European nations, it's claimed
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Pro-Kremlin television channel NTV revealed his role in a 40 minute film
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Moscow says his work meant Edward Snowden's files were redundant
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