America woke up to a new reality on 9/11. In 2016, National Geographic looks back at fifteen years of reporting on the events stemming from that tragic day. 9/11: The Longest War | S1, E1 Explore the World with National Geographic subscriptions: http://natgeo.com/ytngmagazine ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get more Nat Geo Full Episodes: https://youtube.com/playlist?list=PLivjPDlt6ApSiD2mk9Ngp-5dZ9CDDn72O ➡ Get more Nat Geo Wild Full Episodes: https://youtu.be/qAG2SkTPltw And