Premieres Tuesday, September 6 at 8/7c. Explore the unprecedented attack on the US Military Command Center and hear from survivors & insiders. http://to.pbs.org/2ctXlyB | #911PentagonPBS Subscribe to the PBS channel for more clips: https://www.youtube.com/user/PBS/featured Enjoy full episodes of your favorite PBS programs at pbs.org/video. Like PBS on Facebook: https://www.facebook.com/pbs/ Follow PBS on Twitter: https://twitter.com/PBS Follow PBS on Instagram: https://www.instagram.com/PBS Official website: http://www.pbs.org/ Get PBS merchandise: http://www.shoppbs.org/home/index.jsp Marking the 15th anniversary of the September 11, 2001, terrorist attacks on the U.S., this program tells the rarely told stories of the attack that took place at the headquarters of the U.S. Department of Defense, in which 184 people died. As most of the media coverage of the events of September 11 focused on New York City and United Flight 93, details of the attack that took place at the Pentagon have rarely been heard publicly, until now.