Dear Mr Roger Cohen,
I read your article on "Moral storm" with interest. You seem to have arrived to a question mark, but you turn it into a defence of what you call "liberal civilisation". Let me say that I have some doubts on the existence of such a thing, and beginning with the simple fact of the apories and paradoxes, like the ones that questioned the existence in mathematics of a perfectly complete and consistent formal system.
There is a limit to these systems, an also there is a limit to "liberal" civilisation, a limit that is very softly but not less quickly reached.
The Irving case is only an example. There is no such thing as "the right to differ" when "denial"--a word with strong connexions to psychoanalysis--is at stage.
For example: Freud used this word--in German "Verleugnung"--to point to the fact that in fetischism , the subject accepts that the mother has not a penis, but at the sme time he rejects it--he needs a fetisch for being able to reach a woman.
If you remember, Marx also used this word--fetisch--for commodities. He said that commodities conceal their relationship to human work, that has been sold and packed with that object.
To denial is not to differ. When somebody denials a crime that has been commited, it is not only differ or disent, but something in the word has transformed itself in an act, as we, lacanian psychoanalysts, say. It is an act, present and future. The word has transformed itself, it is not a word, it is something else. When the English people reached the conclusion that you cannot speak against the King if you are stepping on English soil, they were right, they grasped something that "liberal civilisation" has lost forever, and as such it is a question if it still merits the name of "civilisation".
Ths symbol sometimes touches the flesh. "Liberal" thinking --which is based on universal premises only--does not reach the singular, every time it clashes with universal. So democracy may be criminal--as Jean-Claude Milner writes in his superb book that I very much recommend you to read:
Les penchants criminels de l'Europe démocratique.