9/11: The Longest War

In honour of the 15th Anniversary of 9/11, National Geographic Channel is looking back at the very best reporting we have done since this world-changing tragedy first happened using extended excerpts from past specials that relate directly to events leading up to and following the attacks on New York City and Washington DC. Watch 9/11: The Longest War in HD free online now on SFlix with multiple servers and instant playback. Enjoy high-quality streaming of 9/11: The Longest War and share your thoughts in the comments below!