AMERICA is a country of 310m people for whom free speech is a founding principle. So it should be no surprise that it is inhabited by a large number of individuals with some pretty strange views. Thanks to local radio and the internet, they are able to disseminate them to many others rather than just muttering away to themselves. Jonathan Kay, an editor and columnist at Canada's National Post, has chosen to shine a spotlight on one particular group of them; the "truthers", who believe that when America was attacked on September 11th 2001 the American government was in the know, or even staged the whole thing in order (take your pick) to impose draconian social controls in the name of national security or to occupy the oilfields of the Gulf.
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