Other 9/11 features
Archived stories by msnbc.com’s Martin Wolk
Msnbc.com's Martin Wolk was at the World Trade Center when the terrorists struck on Sept. 11. Five years later, he tracked down two people who helped him that day — and examined his own, in some ways controversial, reaction to the events.
The war on terror
Learn about attacks, arrests and other major incidents in global terrorism since 1993. Click "Launch" to view.
HD View: See World Trade Center site now
Click to view an interactive, high-definition picture of the construction at the World Trade Center site as it stands in summer 2009.
Where are they now?
Whatever happened to WTC fireman Bob Beckwith? Find out the latest on ten people whose stories gripped the world during 9/11 and its aftermath
From the archives: How 9/11 changed me
In 2006, five years after 9/11, we asked msnbc.com users to tell how their lives were transformed by the attacks and their aftermath. Here, in their own words, are some of their stories.