Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A betrayal

I'm halfway through this book and like other readers, will probably give it up as soon as I find another book to read. I feel betrayed by an author who lures you into spending your money buying his book and your time reading it and then proceeds to batter you over the head with a political agenda. Never mind that I realize most of his points are valid; he could have gotten them across more effectively by just allowing the situations to speak for themselves. If an author feels he must espouse a cause, please let him do it subtly or, even more honestly, express his views in non-fiction. We get such a ceaseless diet of this type of thing every day from the media that some of us would like to just enjoy a good mystery, especially from an author we had trusted to deliver one.