David Ray has also written a great book on this subject entitled "The 9/11 Commission Report, Omissions and Distortions" which I have read and own, so I can reference it if you have any further questions (should the link not suffice for some reason).
One note on David Ray. Folks here like to tear him down as someone who's dishonest, treacherous, or whatever. I find him to be very credible and I consider him very well informed on 9/11. Oh...he's a Theologian too. (I guess that accounts for his "treachery"). LOL Good day.