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In page Zinoviev letter:

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In the first two months of 1998, rumours of a forthcoming book on the true origins of the Zinoviev letter, based on information from Soviet archives, led to renewed press speculation and parliamentary questions.[6] In response, Foreign Secretary Robin Cook announced on 12 February that, in the interests of openness, he had commissioned the historians of the Foreign and Commonwealth Office to prepare a historical memorandum on the Zinoviev letter, drawing upon archival documents.[citation needed]