I have added a link to a small pdf that rewrites several passages in the first edition of Hidden in Plain Sight, thereby correcting several errors in the text. They will, of course, be correctly incorporated in the next print run. You will find this, entitled Hidden in Plain Sight: Errata
about halfway down the page. I am indebted to several people who caught my use of an erroneous translation in my discussion of a passage in the Kojiki
, and I am particularly indebted to Josh Reyer for illuminating the Yagyu Shinkage-ryu certificate that Ueshiba received from Takeda Sokaku.