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PBS News Hour
What's al-Qaida's future after al-Zawahri's death?
A U.S. drone strike that killed al-Qaida leader Ayman al-Zawahri last weekend in Afghanistan raises questioned about where this leaves the terrorist group and the Taliban's role in harboring him. Nick Schifrin returns with a deeper look at al-Zawahri's background and al-Qaida’s future.