Despite overwhelming evidence and an admission and apology from Germany decades ago, revisionists continue to claim that nearly 6 million Jews were not killed by Nazis during the Holocaust. Iranian President Mahmoud Ahmadinejad, for one, has called the Holocaust a "myth" and suggested that Germany and other European countries, rather than Palestine, provide land for a Jewish state.
Unlike Ahmadinejad, most revisionists do not deny that Jews were interned in prison camps during World War II; rather, they argue that the number of deaths was greatly exaggerated. Gas chambers are a particular sticking point: Holocaust deniers say they were purely a rumor or, if they indeed existed, were not powerful enough to kill — though evidence and history indicate otherwise. And the photographs of emaciated and dying Jews? Attorney Edgar J. Steele, a revisionist, says, "All those pictures of skinny people and bodies stacked like cordwood were actually of Czechs and Poles and Germans [who] died of typhus, which was rampant in the camps."
Source : http://content.time.com/time/specials/packages/article/0,28804,1860871_1860876_1861026,00.html