I do remember Jennings. On the surface, his testimony does stop and make one think. If you look at it a little closer, one can see that conclusions drawn may not be as simple as it seems. For one thing, Jennings did retract his statement that he stepped over dead bodies before his death. One can only speculate why. Also, who were these supposed people whose bodies he was stepping over. Did they not have family wondering what happened to their husband, wife, child, brother or sister? There is a comprehensive list of those who died in the two towers, yet, not of building 7. Wouldn't their deaths be a good propaganda opportunity for government agents? An opportunity never seized, it would seem.
As difficult as machine systems are, however, study of the cryptograms did yield clues. Vowels, for instance, had a relatively higher frequency than consonants. It appeared that the machine divided the romanized alphabet (used in the katakana transliteration) into two subsets, the six vowels and the twenty consonants. Working with one of the less garbled intercepts, and perhaps with some help from the Navy’s solution of another Japanese cipher machine, Rowlett and Solomon Kullback, one of the other original junior cryptanalysts, struck gold one day: Among their tentative recoveries of plaintext were three letters followed by an unknown and then another letter: oyobi . They knew then that they had cracked the system, because oyobi is romanized Japanese for ‘and.’ They named this machine system Red (not related to the Red Code).
Buck moved back to America in the early 1930s and immediately began to campaign for minority and women's rights. She was a member of the NAACP and wrote numerous magazine articles on women's rights. During World War II she spoke out against American internment of Japanese residents and after the war became a target for surveillance by Senator Joseph McCarthy and the FBI. In 1949 she founded Welcome House, the first international, interracial adoption agency in the world, mostly to help Amerasian children fathered by American servicemen during wars abroad. In the late 1960s she founded the Pearl S. Buck Foundation to provide foster care for these children. She also helped to open America's mind and attitude toward mental retardation by writing The Child Who Never Grew Up about her daughter Carol in 1950.