Listen to Erik Ronningen and his day on September 11, 2001.

Part One: Erik was the last person to make it out of the South Tower of the World Trade Center.  He tells of his escape from the 71st floor of the North Tower and recounts his incredible experiences from a day of sudden terror.  Sometimes hard to listen, but still very enjoyable.  At the same time, it helps us understand why 9/11 changed the world of security worldwide.