Though the memo had never been classified, and had been making the rounds online for some years, it was seen as 'proof' of an official cover-up by the US government.
メモはけっして分類されず、数年間、オンラインで巡回していたけれども、これは合衆国政府による公式な隠蔽の「証拠」 ('proof') と見なされた。