Auschwitz and the allies: How the allies responded to the news of Hitler's final solution

In this book the author has "... told the story of how and when the Allies learned of the Nazi extermination of the Jews, and how they responded." Gilbert reaches conclusions unflattering to the Allies and blames their collective inaction on their disbelief that mass killings could actually be taking place, on political considerations, and on prejudice. There is a discussion of proposals to bomb Auschwitz and explanations of why it was never done.