dr. gassner saying he accepted his proposition 100%. in time dr. gassner introduced dr. -- sebold to one of the many alias for nicholas fritz ritter and the english officer based in hamburg. today we have his daughter catherine wallace who is the second row here. just to fill in slightly who she is and how she came into the story, catherine was a young girl during the war and rader lived in the united states in the 1920s had married in alabama born woman he took with him to germany. they had two children one of whom was catholic and by the time ritter met sebold and brought him into the spy service they were already going through divorce and catherine was a young girl who had an extraordinary wartime story that she had written about in her own memoir which involves a divorce and custody battle kind of like cramer versus cramer melded with an glorious come i don't know but it's quite a story. [laughter] she after the war came to the united states and currently lives in the washington d.c. area and speaks not with a german accent but with a thick syru