Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What a Disappointment

This is the most disappointing book I have read in a long time. As with the other reviewers, I became a Caleb Carr fan through his previous two books, and I bought this one as soon as I saw it. I can only think he decided to make a quick buck off of his name or he simply wanted a vehicle for his book long diatribe against modern society and its technological trappings. The plot is contrived and illogical, and the characters are shallow to the point of cartoonish. Even the science, what there is of it in the book, is bad. The hand held "rail gun" that purportedly delivered enough energy to disintegrate a human body into small pieces would have enough recoil to kill the user. In the chase of the fanatic terrorist the group had ample opportunities to eliminate him but the author contrived illogical reasons why they could not do so in order to keep the chase going. I just wish the rating system allowed for zero stars. This book earned it.