I believe I quoted from a 9/11 Commission Staff Report.
Firstly sorry for the the double posting.
Yes you did quote the report, but in the original blog there are conclusory statements far closer to those of Posner, that you admonished me to read the blog, the obvious inference is that you were defending it not the rather dry statement of the official report.
The quote from the report made no such claim of culpability by any of the people the blog mentions.