9/11: A Day That Changed the World - Ten years later, the events of September 11, 2001, still resonate -- especially for the people who were in critical leadership positions on that fateful day. Hear intimate accounts from New York Mayor Rudy Giuliani and the chiefs of the NYPD and FDNY, Secretary of Defense Donald Rumsfeld, Vice President Dick Cheney and many others who found themselves at the center of the action. Unprecedented decisions. Unimaginable tragedy. This is the definitive story, from 6 am to midnight, of a day that changed the world.  9/11: Stories in Fragments - How do you grasp an event as enormous as September 11?  At the Smithsonian's National Museum of American History, you start small: A briefcase, a Blackberry, a victim's sweatshirt, and a hero's nametag.  Simple objects that tell personal stories, recounted in the donors' own words.  Stories from New York, the Pentagon and Shanksville, PA remind us that the legacy of 9/11 is not fear -- it's friendship, courage, and ordinary people pushed by extraordinary circumstances.  Their stories deserve to be remembered across decades and generations.  By telling them, we triumph over tragedy.