From Richards Heuer’s: Nosenko: Five paths to judgement
Some of these assumptions were erroneous - based on an exaggerated view of overall KGB capabilities. This made possible a series of discoveries of "duplicity" by Nosenko and other counterintelligence sources who could rarely measure up to CIA's expectations of what they ought to have known, accomplished, or said. An important example concerns the gaps in Nosenko's knowledge of operations against the American Embassy in 1960 and 1961, while he was deputy chief of the responsible section. The interrogators developed their own job description for a deputy chief of a section, then used this as a criterion for judging what Nosenko should have known. The job description was faulty, as it was based on the American concept of a deputy who is fully informed, has authority paralleling the chief, and who automatically fills in for the chief when he is absent.
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