 Another strand of re-thinking that has occurred in the study of the Holocaust concerns a renewed focus on the motivations of the ordinary people who participated in the machinery of mass murder. A major field of research into ordinary behavior during the Holocaust was made possible by the availability of investigative files concerning the actions of a Hamburg police unit that was assigned special duties as “Order Police” in Poland in 1940. These duties amounted to collecting and massacring large numbers of Jewish men, women, and children. Christopher Browning (1992) and Daniel Goldhagen (1996) made extensive use of investigatory files and testimonies of the men of Reserve Police Battalion 101. Both books came to shocking conclusions: very ordinary, middle-aged, apolitical men of the police unit picked up the work of murder and extermination with zeal and efficiency. They were not coerced, they were not indoctrinated, and they were not deranged; and yet they turned to the work of mass murder with enthusiasm. A small percentage of the men of the unit declined the shooting assignments, but the great majority did not. Another important example of research on ordinary people committing mass murder is Jan Gross’s (2001) case study of a single massacre of Jews in Jedwabne, a small Polish town during the Nazi occupation, but not ordered or directed by the German occupation. Instead, this was a local, indigenous action by non-Jewish residents in the town who gathered up their Jewish neighbors and then murdered large numbers of them. Gross’s account has stimulated much debate, but Anna Bikont (2015) validates almost every detail of Gross’s original narrative.