| http://www.w3.org/ns/prov#value | - Dr. Crenshaw, who has studied IS???s evolution from its roots as Al Qaeda in Iraq in the early days of the American invasion of Iraq, says the group [while still AQI] did for a time stop its tactic of widely disseminating beheadings and other extreme violence, and she???s unsure why the group recommenced with the Foley execution.
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