The denial two-step

When Christopher Hitchens in Thursday's Wall Street Journal (subs. req'd) claims about David Irving:

You may have to spend time on some grim and Gothic Web sites to find this out, but he is in fact not a "denier," but a revisionist, and much-hated by the full-dress "denial" faction.

he should for the sake of clarity note that this is not what the judge in Irving's libel case against Deborah Lipstadt found:

13.95 Even so, it appears to me to be incontrovertible that Irving qualifies as a Holocaust denier. Not only has he denied the existence of gas chambers at Auschwitz and asserted that no Jew was gassed there, he has done so on frequent occasions and sometimes in the most offensive terms.