For one, I'm not going to put any money in the DI's coffers by buying the book. Secondly, whatever the book states on the motives of the DI doesn't matter since DI has already stated its motives. The book will, at most, be another whitewash attempt. Their stated intent is to have ID as the accepted "theory" not by competing in science, but by redefining science, political pressure and taking over school boards to have the change forced.
IOW, I don't have to be all knowing, I just have to have read the DI's own document that they did not want the public to see. This was supposed to be a stealth campaign (read: deception and lies), but the cover was blown.
I first read it from a library. But, as you will.