"black propaganda" meaning in English

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  "lang_code": "en",
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      "coordinate_terms": [
        {
          "word": "black radio"
        },
        {
          "word": "white propaganda"
        }
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      "examples": [
        {
          "ref": "1990, Peter Hopkirk, The Great Game, Folio Society, published 2010, page 13:",
          "text": "Masters at black propaganda, the Mongols saw to it that hair-raising tales of their barbarity were carried ahead of them as they advanced across Asia, devastating kingdom after kingdom, towards a quaking Europe.",
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      "glosses": [
        "False or unverified propaganda, especially appearing to come from an enemy's own sources; disinformation."
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      "id": "en-black_propaganda-en-noun-llBoPyrP",
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          "False",
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          "disinformation",
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  "word": "black propaganda"
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      "word": "black radio"
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      "word": "white propaganda"
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  "lang_code": "en",
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          "ref": "1990, Peter Hopkirk, The Great Game, Folio Society, published 2010, page 13:",
          "text": "Masters at black propaganda, the Mongols saw to it that hair-raising tales of their barbarity were carried ahead of them as they advanced across Asia, devastating kingdom after kingdom, towards a quaking Europe.",
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  "word": "black propaganda"
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