9/10: The Final Hours

9/10: The Final Hours takes us moment by moment through the day before everything changed, before the 'war on terror' became a part of the world's everyday vernacular. We'll hear from those who worked inside the World Trade Center, whose snap decisions resulted in narrow misses of the attack, as well as men and women who confronted the terrorist mastermind of the operation, Mohamed Atta, during his sudden ' and still unexplained ' detour to Portland, Maine. (National Geographic)