Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing

The cover of the hardbook advertises "9/11, Iraq, and the abuse of America's intelligence agencies" yet a lot of the book feels like a history lesson. The author has a tendency to provide extensive backgrounds and histories for each and every person, organization, and agency involved in his book. It becomes rather tedious after the first couple of chapters. I can't swear to it but portions of this book appeared in Mr. Bamford's other books. The chapters and sections that mention the NSA are an example.Overall, I am disappointed with the book and probably will skim the remainder of it.