the world hears you. and the people who knocked these buildings down will hear all of us soon. >> 9/11 was less a failure of intelligence and more a failure of imagination. >> admiral james debridis fought in haiti and iraq and became nato's supreme allied commander. >> we couldn't imagine that a primitive foe, operating from an ungoverned space in afghanistan could have the sophistication to put together a plot with 20 perpetrators, using credit cards, who'd come to america to learn how to fly in a primitive fashion would then be able to take over four jetliners and crash them into iconic american buildings. >> where were you on 9/11? >> i was in the pentagon.