The author is Philippe Sands and the subtitle is On Impunity, Pinochet in England, and a Nazi in Patagonia. This book made many “best of the year” lists, but at first I resisted buying and reading it, fearing it was just more mood affiliation on Pinochet. In reality it is highly substantive, not just deserving of a place on my best non-fiction of the year list, but likely in the top ten of that list. It has the narrative sweep of a good novel, and is profound on the following topics: the nature of political evil, the banality of evil in the Arendt sense, why Pinochet remains such an emotional issue in Chile, how former Nazis can slip through the cracks, what former Nazis do for their next act, what kind of autocracy Chile gives rise to and why, how international law operates when faced with tricky extradition problems, and much more.
So recommended, and added to my own list. And yes I did buy another book by Philippe Sands, the acid test of whether I really liked something.