ayman al zawahiri was on the us most wanted list for his role in plotting the 9/11 terror attacks in 2001, which killed nearly 3,000 people he took over the terrorist group al-qaeda after the death of 0sama bin laden president biden said al zawahiri was also behind the attack on the naval destroyer the uss cole, in aden, which killed 17 us sailors in the year 2000 and the attacks on the us embassies in kenya and tanzania in 1998, which killed 223 people. announcing the drone strike, president biden said al zawa hiri had carved a trail of violence and murder against american citizens . he said: nowjustice has been delivered and this terrorist leader is no more . a short time ago i spoke to chris hunter, an author and former major in the british army. he explained ayman al zawahiri s role in the history of al-qaeda and told us more about the attacks the militants carried out. i think, first and foremost,
have generals who are quite up there in years but they are important because of their battlefield knowledge, their connections and ability to lead. they are not people who can beat up nerve the unit but known for leadership. osama bin laden wasn t a front-line fighter or al-zawa i al-zawahri. but that doesn t not make them important to the organization. the idea they were too old and irrelevant because they couldn t fight well doesn t stand up at all compared to how we know organizations work and how fighting organizations work. reporter: considering the middle east continues to expl e explode, implode on many fronts, how important would it be for qatar to extend these men s detention at this time? i think one of the reasons why it s important is because these guys have pretty strong connections to al qaeda. there is ongoing debate to what