Efraim Zuroff is an American-born Israeli historian and Nazi hunter who has played a key role in bringing indicted Nazi and fascist war criminals to trial. Zuroff, the director of the Simon Wiesenthal Center office in Jerusalem, is the coordinator of Nazi war crimes research worldwide for the Wiesenthal Center and the author of its annual "Status Report" on the worldwide investigation and prosecution of Nazi war criminals which includes a list of most-wanted Nazi war criminals.