Opinion | False, toxic Sept. 11 conspiracy theories are still widespread today

Meanwhile, Truther communities cropped up online and believers met at conferences across the country. A new class of “experts” also emerged. Fenster explained that academics such as physicist Steven Jones and theologian David Ray Griffin, as well as longtime conspiracy theorists including Alex Jones, made the case for Trutherism in books, broadcasts and lectures. Within a few years, an entire Trutherism industry had formed.

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