One leading exponent of this activity first became interested in it by reading Arno Mayer's book  Why Did the Heavens Not Darken?  Canada's Supreme Court voided Section 181, a law against this behavior, though in France, this behavior is still outlawed by the Gayssot Act. That law was used to convict Robert (*) Faurrison, whose publication endorsing this activity came with an introduction by Noam Chomsky. In the United States, a major organ of this activity is Willis Car
One leading exponent of this activity first became interested in it by reading Arno Mayer's book  Why Did the Heavens Not Darken?  Canada's Supreme Court voided Section 181, a law against this behavior, though in France, this behavior is still outlawed by the Gayssot Act. That law was used to convict Robert (*) Faurrison, whose publication endorsing this activity came with an introduction by Noam Chomsky. In the United States, a major organ of this activity is Willis Carto and Mark Weber's Institute for Historical Review. Fred Leuchter testified at Ernst Zundel's trial for this activity, whose current leader is perhaps David Irving. For 10 points, identify this pseudohistorical activity which is engaged in by Richard Verrall's pamphlet Did Six Million Really Die?
One leading exponent of this activity first became interested in it by reading Arno Mayer's book  
Holocaust denial [or Holocaust revisionism or other equivalents]