The main entrance into the former Auschwitz-Birkenau camp is through the building shown in the photo above.
I took a similar photo on one of my 3 trips to the memorial site at Auschwitz-Birkenau.
You can read about the Sonderkommando Jews in this news article: http://scroll.in/article/818506/stories-from-holocaust-prisoners-forced-to-work-in-the-gas-chambers-should-not-be-silenced
The following quote is from the news article:
In some of the earliest novels in North America to address the Holocaust in the 1950s and 1960s, characters who are former members of the Sonderkommando function as archetypal survivors: psychologically damaged but also morally suspect.
Holocaust survivors in general were often greeted with unease, facing questions of what compromises they had made and at whose expense. The Sonderkommando clearly stood for this moral dilemma more than any other figure.
By the 1980s, a very different set of ways of presenting the Sonderkommando arose. Greater knowledge of the specific details of the Holocaust produced more of a sense that the Holocaust was a uniquely total attempt to exterminate a people, and a concomitant belief that it tested the capacity of art to represent it.
Claude Lanzmann placed one member of the Auschwitz Sonderkommando, Filip Müller, at the centre of Shoah (1985), his nine-and-a-half-hour documentary film about the “final solution”. For Lanzmann, Müller’s story could only be told through testing the boundaries of film making, stretching it out almost beyond the limits of an audience’s endurance. Müller’s speech rhythms were slowed to a glacial pace, the spliced-in silences resonated with the emptiness of the landscapes over which it served as a voice-over.
And Primo Levi devoted part of his essay “The Grey Zone” (1986) to the Sonderkommando. For him too, silence was the only possible response. He urged readers to dwell on rather than pass over the Sonderkommando’s situation, but argued that such meditation could only end in the impossibility of judging them.
You can read all about the gatehouse at Auschwitz-Birkenau on my website at http://www.scrapbookpages.com/AuschwitzScrapbook/Tour/Birkenau/Gatehouse.html