What responsibility do the Polish people share for the mass murder of the Jews, which took place largely on Polish soil? In this major contribution to the history of the Holocaust, Antony Polonsky brings together in translation the most important arguments in this very public and controversial debate. The volume's contributors grapple with the complex moral issues and painful questions which are history's legacy: What could the Polish people have done, and what were they willing to do? Many have argued their innocence and utter helplessness before the Nazis, while others resolutely refuse excuses for standing by, or even aiding, the slaughter. My Brother's Keeper? meets these dilemmas head-on, in a tough and troubling debate.