Hetherington and Weiler focus on a subject that is central to the divide we see in the U.S. and around the world today. The book is, I think, one of the better discussions on the two primary worldviews confronting each other today, authoritarianism and non-authoritarianism. It is not only an elaboration and expansion on ideas developed by Adorno in 1950 (The Authoritarian Personality) and Altemeyer in 2006 (The Authoritarians), but I think establishes new ground in the understanding of these two worldviews. The focus on threat as the driving force behind authoritarianism and the polarization that occurs as a result of the variance in preceived threat is well documented in this book. The point that we all move further up the scale of authoritarianism the more we preceive a threat is an important point that is also well documented in this book. Hetherington and Weiler provide ample documentation to support their presentation and their bibliography is a wonderful source of further reading for those so inclined.