There is a Flat Earth Society in existence and you can freely debate the fact that the Earth is flat. Why can't Irvine be allowed to discuss his view that the Holocaust didn't happen so that he can be confronted with the undeniable truth and documentation tha show it did. Surely it is better that Irvine be out in the open to be laughed at, rather than skulking in the shadows peddling his view of the world, to those who would frankly believe anything.
Yemen's Houthi rebels commit to peace plan in letter to UN chief, BBC reports (Haaretz)
from the article: Oxford Union reportedly invited Holocaust denier Irving to speak