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Fredo undoubtedly knew "about the Senate hearing" which Fredo "deliberately and deceitfully concealed even after his betrayal, the Tahoe shooting then cunningly withheld" the information from Michael -- Michael prison Fredo Don


I'm not sure how the word "undoubtedly" is supposed to function there. For all we know, Fredo had some glancing contact with Questadt in Havana, and was as surprised as anyone to see Questadt on TV with the senators.

"All of these men were good listeners; patient men."