How Close Is Al-Qaida To Defeat?

News & Features Dina Temple-Raston · ·

Ayman al-Zawahiri (shown here in a still image posted online by al-Qaida in July) replaced Osama bin Laden at the top of al-Qaida's leadership. Some argue that eliminating a few key leaders would significantly weaken the group; others say the more dangerous threat — from al-Qaida affiliates — would be unaffected by changes in the group's core leadership.