Senator Bob Graham was at Books-a-million today (6-6) signing his new book "Keys to The Kingdom".
The book is about what Graham calls the secrets and unanswered questions of the 9-11 attacks.
Graham says his readers will be surprised about some of the book's details.
"Well I think they'll be surprised at the role the Saudi's played in 9-11. I think they'll be even more surprised at the extent to which our government went to cover up the Saudi role," said Graham.
Graham is a member of the CIA advisory board and says she had to submit several drafts of the book to the CIA for their approval. He says that's because of the highly sensitive information.