&gt;&gt; the horror of the concentration camps was not well known to the public during the war<p>But it was pretty well known for the british and american governments(since 1941 or at the latest 1942) , and even to this day, some details of said knowledge(the intelligence reports on decryptions on concentration camps communication)  are not availble to historians.<p>One has to wonder why.<p>Actually when reading more about it, even if the American public would have known, it probably wouldn&#x27;t have mattered much, judging by later genocides :<p>&quot;&quot;no U.S. president has ever suffered politically for his indifference to its occurrence[genocide]. It is thus no coincidence that genocide rages on.&quot;<p><a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;exec&#x2F;obidos&#x2F;ASIN&#x2F;0060541644&#x2F;metafilter-20&#x2F;ref=nosim&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;exec&#x2F;obidos&#x2F;ASIN&#x2F;0060541644&#x2F;metafilter...</a><p>Also another book shows how the holocaust was an open secret , known to millions since at least 1941:<p><a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;exec&#x2F;obidos&#x2F;ASIN&#x2F;0805059849&#x2F;metafilter-20&#x2F;ref=nosim&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;exec&#x2F;obidos&#x2F;ASIN&#x2F;0805059849&#x2F;metafilter...</a>