Three Canadian universities will be used as venues for a speaking tour by prominent 9/11 skeptics.
Americans Richard Gage and David Ray Griffin dispute the conventional wisdom that foreign terrorists linked to al-Qaida brought down the Twin Towers on Sept. 11, 2001.
They will give lectures at the University of Toronto, Carleton University and the University of Quebec in Montreal over the coming days.
Faculty members at the Montreal university told a city newspaper they are upset the institution is being used for the event.
One says it harms the school's credibility.
This tour comes right on the heels of a free-speech controversy that erupted when US pundit Ann Coulter had an appearance cancelled at the University of Ottawa.