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Who was al-Zawahri — and why did US kill him?

WASHINGTON (AP) — A U.S. drone strike in Afghanistan this weekend killed Ayman al-Zawahri, who helped Osama bin Laden plot the Sept. 11, 2001, attacks on the United States and helped al-Qaida survive and spread in the years after. By finding and striking al-Zawahiri, President Joe Biden said, the U.S. was ensuring that Afghanistan under the Taliban would never again become a base for attacks on the rest of the world, as it was in 2001.

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