Originally Posted by Big Twisty
It was hugely secretive, and the allies new little about the camps until they began to liberate them. Ironically the "efficiency" we label the modern day German as was systematic of the Nazi regime. This allowed them to be so successful at the "final solution" that had the war not ended when it did, they would have succeeded in wiping out an entire race of European Jews.
Absolute horseshite mate.
The first reports came out around 40/41 and confirmed reports were certainly presented to the allies from reliable sources in 42.
The Nazis never hid the program but the west refused to believe they would carry it out.