I'd like to watch them sweat if you forced them to fact check "The 9/11 hijackers were terrorists" using the same priors.
> In the absence of a single, universally-agreed definition of "terrorism," it is a matter of subjective determination as to whether the actions of Mohamed Atta - leading a group of young men to hijack planes and fly them into buildings — should be described as acts of "domestic terrorism."
It's kind of beside the point, but Mohamed Atta would never be considered a domestic terrorist. He travelled to the United States on a tourist visa, specifically to engage in terrorism. That disqualifies his actions from being 'domestic'.
> In the absence of a single, universally-agreed definition of "terrorism," it is a matter of subjective determination as to whether the actions of Mohamed Atta - leading a group of young men to hijack planes and fly them into buildings — should be described as acts of "domestic terrorism."