Content created by Professor Deborah Lipstadt in conjunction with Maureen MacLaughlin and Dan Leshem. CLAIM: Brian Renk, of the deniers' Institute for Historical Review, claims that no one has been ". . . able to find physical evidence of Zyklon-induction holes at the site, or a single reference to them in the camp's voluminous design and construction records . . ."

RESPONSE: Despite the fact that the wire-mesh introduction columns can't be found today, their existence is confirmed by eyewitness accounts-both perpetrator and survivor-and by a surviving German documents that lists them in an inventory.