The Al-Zawahiri Letter and the Coming Jihadist Fracture
MIN READOct 21, 2005 | 00:58 GMT
An image grab taken from Al-Jazeera television on June 23, 2006, shows footage of al Qaeda's Ayman al-Zawahiri vowing to avenge the death of Abu Musab al-Zarqawi, who was killed in a U.S. air raid June 7. During al-Zarqawi's life, the two did not always see eye to eye.
(-/AFP via Getty Images)
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