Bizarre. Who needs “fresh evidence” of established historical facts?! Does this make some people (there and here) feel good, righteous, self-satisfied?
Extermination camps = places with large gas chambers to which there were enormous deportations of hundreds of thousands of Jews. There were only six of these, Auschwitz, Chelmno, Maidanek, Sobibor, Belzec, and Treblinka. All were in Poland, none were liberated by Americans. At Belzec, there were believed to be 600,000 Jews sent there; only two are known to have survived.
The other camps, in Germany, Austria, and France (Dachau, Buchemwald, Mauthausen, etc.) killed prisoners by shooting, lethal injection, and starvation, and they have death totals were at most in the tens of thousands, not hundreds of thousands. These camps are not even remotely comparable to the extermination camps.