Don’t hitch your wagon to this guy yet before you see the people he has associated with in the past (John Loftus and Scott Ritter).
Understand, but the Army approved publication. The DIA weighed in, reportedly on the issue of what may or may not have been said in a meeting between the author and a member of the 9/11 Commission. If that is borne out, then I’m not sure that I’m seeing the National Security issue here. Methods? Sources? Not likely.