Citizens can choose to buy the official line on the events of Sept. 11, 2001 — or they can ask questions about holes in that story as big as the crater at Ground Zero. This week, at the unlikeliest of locations, the Ukrainian Cultural Centre in west-end Toronto, the International Citizens' Inquiry into 9/11 picks up where it left off in San Francisco in March. Here, international authors, filmmakers, academics, military and intelligence experts as well as, yes, probably the occasional conspiracy theorist, are mixing it up with ordinary people who can't accept that all the systems simply failed on...