and in our book, what i try to explain how we start out eliminating abu ali in a space in time but then the real success at taking down the rest of the organization was a yemeni success supported by us. and i think that is a much healthier model and a more sustainable model than some model that has the united states taking direct action all over the world. >> i was very pleased to welcome today cnn correspondent labbit. [laughter] >> thank you for that introduction. ambassador, thank you so much. and congratulations on the book. i was wondering if you could talk a little bit more broadly about the possibility of regime change in yemen and president sala and how could that affect the counterterrorism and the things that you discussed that are needed for a u.s. partnership. thank you. >> yes. well, a lot of the challenge in yemen, in my time, was getting a working relationship with president sala. he is a very cunning fellow, -- kind fellow, but he is not particularly easy to work for. but it took more than my efforts, and the efforts of president bush at the time and others, john tenets,