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

Once I started this book, I couldn't put it down. It reveals the unheard story of the 9/11 terrorists and how they managed to carry out the horrific September 11th attacks.The part that I found the most intriguing, and disturbing, was how there were steps that could have been taken by the American government to prevent the attacks, if only they had stepped up to the plate early on.This book is definitely worth the read.