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PBS News Hour
What's behind ISIS' most gruesome tactic?
ISIS' release Friday of yet another videotape showing the beheading of a western hostage has once again drawn international condemnation and refocused attention on the very practice. In fact, beheadings date back to ancient times, and today, they are hardly limited to the violence waged by ISIS in Iraq and Syria. NewsHour's Ivette Feliciano reports.
