George S. Ledyard wrote:
Segal Sensei is a major figure in contemporary American Aikido. Therefore it is perfectly reasonable to want to research the details of his life and training.
Of course, many other major figures in Aikido (including Morihei Ueshiba) also have the details of their life and training researched, examined, and questioned on the various internet forums. I don't recall ever seeing an objection in those cases.