intelligence official said . Al-Balawi says in the video that his faith can not be sold to bidders , an apparent message to Jordanian and U.S. officials that they had failed to win his allegiance . It puts into question how well the CIA and other intelligence agencies can penetrate al Qaeda . Gen. David Petraeus , head of U.S. Central Command , told CNN 's Christiane Amanpour that local officials are better at `` human intelligence '' than foreign agents . `` That 's not to say that you ca n't have some real breakthroughs , '' Petraeus said during the interview , to be aired Sunday . `` It 's not to say you ca n't develop sources , you ca n't put people in there and so forth . '' Al-Balawi mentions Baitullah Mehsud , the leader of the Taliban in Pakistan who was killed in a missile strike last August . `` We will never forget the blood of our leader Baitullah Mehsud , may God have mercy on his soul , '' he says in Arabic , according to a CNN translation . `` It will remain that we take revenge -LRB- for his death
-LRB- CNN -RRB- -- The man believed to be the suicide bomber who killed seven CIA employees and contractors last month appears in a newly released video , in which he vows revenge for the killing of a Taliban leader . The video shows Humam Khalil Abu-Mulal al-Balawi , whom a former U.S. intelligence official identified as the suicide bomber . Al-Balawi 's brother told CNN Senior International Correspondent Nic Robertson that the man in the video , who uses the alias Abu Dajana Al-Khorasani , was his sibling . In the tape , which aired Saturday on the Arabic satellite news channel Al-Jazeera , al-Balawi says his message is for the CIA and Jordanian intelligence . The December 30 bombing at a U.S. base in Khost , in southeastern Afghanistan , killed seven CIA operatives and a Jordanian army captain . Al-Balawi was a Jordanian doctor whom Jordanian authorities had recruited as a counterterrorism intelligence source , a Jordanian official told CNN this week . Jordanian and U.S. intelligence agencies apparently believed al-Balawi had been rehabilitated from his extremist views and were using him to hunt Ayman al-Zawahiri , al Qaeda 's No. 2 figure , a former U.S.