Is there any irony in Fatherland?

In the section dated Saturday, April 18, during the novel's climax, the highly sought after information is finally revealed. March led up to this point with the discovery of the invitation to the Wannsee Conference, but the discovery of the details of the extermination of the Jews at the concentration camps is the pinnacle of proof necessary to take it to the United States government. Ironically, Nightingale, the one man who could have facilitated the process as well as Luther's defection, betrays the plan because of his jealousy over Charlie's feelings for March. The author asks the reader to believe the behavior which would prevent the relatively easy transfer of information via Luther's defection hinged on the wounded feelings of a spurned suitor. It is also difficult to believe that the information found about the death camps would have been a great secret revealed in 1964, the time period of the book's plot. However, this is a work of alternate fiction and the author requires the reader to trust in both fact and fiction as he tells his story.