original_query: Who is Efraim Zuroff?
query: Who is Efraim Zuroff?
answer: 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. He is the director of the Simon Wiesenthal Center office in Jerusalem and the coordinator of Nazi war crimes research worldwide for the Wiesenthal Center.