According to the about-as-credible-as-Pravda source DebkaFile:

DEBKAfile Reports Exclusively: Pakistan red-faced on discovering "high value" terrorist target its troops surrounded in Waziristan was not bin Laden's No. 2 Zuwahiri but chief of Pushtun Ahmadi tribal federation. DEBKA sources estimate that any harm to Pushtun chief would spark wholesale tribal war offensive against Pakistan.