waking up one morning and finding out that terrorism on 9/11 of this year was back full-fledged. killing the u.s. ambassador. i don't see political agenda here. i see the fog of war. it's not about politics. it's about the difficult task of reconstructing what happened. >> september 18. >> did the administration have any sort of heads up that violence was increasing specifically in libya before the attack? >> i am not aware of any ed. this is a matter under investigation in term whoofs precipitated the attack. motivation of attackers were. >> that night on the late show with david letterman the story shifts slightly. president obama said the video did spark muslim outrage, which terrorists exploited to attack and kill ambassadorsteins. >> you had a video that was released by somebody who lives