"We share your frustration," Thomas Fingar, deputy director of national intelligence, told Congress yesterday. "Being No. 3 in al Qaeda is a bad job. We regularly get to the No. 3 person."
Bin Laden search frustrates officials →
He noted that the appeal of al Qaeda's Islamist extremist ideology is strong and has protected bin Laden and al-Zawahri from U.S. offers of reward money or other incentives aimed at locating the men.