It appears my book on the loss of THRESHER at 09:18:24R on 10 April
1963 - it collapsed at a depth of 2400-feet with no prior flooding - is
selling well as the result of on-going legal actions to force the Navy to
declassify much of what the book has already provided to the public,
as discussed by the linked article.

As has been the case with my analyses of the loss of SCORPION and - most
recently - the Argentine submarine ARA SAN JUAN, I refused any royalties
or other forms of profit from books and articles on these events.

Basically, nothing has changed in the 57 years since THRESHER was lost.
Naval Reactors didn't want to hear the acoustic evidence then nor do they
want to acknowledge it now. The linked article provides specifics.