her grandfather passed away prior to the published article (not book as I previously said).  The article confirms that he was editor of the Nazi propaganda newspaper.  And it states that the information regarding his work with the resistance was unconfirmed.
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Freeland wasn't in Ukraine during the war, she has no way to know what her family did or why other than what she has been told.
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look up disinformation ... it does not simply refer to outright lies but also to manipulations.
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either way, it about a relative 2 generations ago.  not really relevant to today