You better read David Frum's article I just linked in #15.
I've got the book, and have been reading it. Skipping ahead to the conclusion, he doesn't call for throwing Israel to the wolves.
He points out the painful truth, supporting Israel makes enemies all over the world, especially among Muslims, especially in the Middle East. Like it or not, that's the truth.
There's no way to sugarcoat it.
It's also true that Scheuer doesn't like some of Israel's policies, but that's his right. At any rate, the vast majority of the book has nothing to do with Israel.
His main conclusion is that we must accept that we are at war with many Islamics, and that Al Qaeda isn't an aberration. The war isn't going to go away.