emerged as one of the main proponents of the extermination camp hypothesis after Trzcińska died in 2011, and IPN's lack of reaction when the commemorative plaque citing Trzcińska's data was unveiled in 2017. Nasz Dziennik, a right-wing to far-right Catholic newspaper, and affiliated Radio Maryja, have promoted the hypothesis as an emblem of Polish martyrdom. The media outlets have also advocated for introducing the story into school curricula and for constructing a museum of KL Warschau. In 2001, Bartoszewski dismissed the gas chamber theory as being propagated among those "who think that too few people have died in Warsaw". Havi Dreifuss, Jan Grabowski, and Gideon Greif have related the gas-chamber story to the current Polish government's history policy and interpreted the account as a conspiracy theory (Grabowski) or fake history (Dreifuss). Walkowski, who said he was bemused by the fact that people were unhappy with his findings about fewer deaths, told reporters he had received threats. Historian Daniel Blatman, on the other hand, while seeing the hypothesis as "one of numberless stories that Holocaust deniers around the world are posting online", warned against generalising on the Polish society or the governments it brought to power. Commemoration Probably in the 1950s, a Tchorek plaque, which said that "in 1943-1944, Polish patriots were repeatedly shot to death and burnt by the Hitlerites in this building", was installed on a wall of the burnt-out Wołyń Caserns, specifically on the east wall, facing Zamenhof Street. The plaque was lost in 1965, when Gęsiówka was demolished. Bogusław Kopka says, though, that during his visit to Warsaw in 1959, Richard Nixon, then Vice President of the United States, managed to lay a wreath in front of the main building of the former concentration camp. Commemoration efforts were renewed in July 2001, when the Sejm, the lower house of the Polish parliament, adopted a resolution commemorating the victims of the concentration camp while calling to create a monument "in remembrance of thousands of Polish inhabitants of Warsaw who were murdered in the Warsaw concentration camp as part of the plan of annihilating the Capital City of Poland, as well as murdered citizens of other nationalities: Jews, Greeks, Gypsies, Belarusians and Italian officers". In March 2004, the Warsaw city council allowed to build a commemoration site on the Alojzy Pawelek square in the southern part of Wola district, next to what Trzcińska contended were gas chambers and subcamps