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Regarding the formation of Prussian blue , I agree that if the conditions are right that HCN can act as a reducing agent if Fe ( CN ) 63 - is already present . " Artificial Intelligence is a regular topic of conversation at Harvard University and its neighbour , the Massachusetts Institute of Technology , and seems to be outgrowing the negative connotations that came to be associated with it years ago , speakers said . Regarding the ability of moisture to slow down the evaporation of HCN , we have not ignored that fact . " Wiesel 's words are these : " Eye witnesses say that for months after the killings the ground continued to spurt geysers of blood . to the testimony of witnesses - - to gas the victims . Regarding the question of air exchanges , Rudolf berates us for accusing him of intentionally misleading his audience by the dual use of the word " exchanges . Regarding the air photos Rudolf berates us for putting the response to Faurisson 's arguments off until such time as a more thorough refutation is presented ; yet Rudolf does not even address the response that we do make . This was the job of Sonderkomanndo 1005 ( see Aktion 1005 ) : to open the mass graves , disinter the corpses , cremate them , and spread the ashes over the field and streams . I have been reading other your responses to other questions regarding the role of the Catholic Church in the Holocaust .