RALEIGH, N.C. -- Twenty-five years after escaping the World Trade Center just minutes before the towers collapsed, Mike Dempsey, who now lives in North Carolina, is working to educate future generations about the September 11 attacks and support those affected by them.Dempsey worked for Credit Suisse in World Trade Center 5, which was connected to the North Tower. His wife, Amy, worked on the 100th floor of the North Tower.Amy was late for work that morning. Dempsey said she would have been trapped above the impact zone when the first plane hit if she had arrived on time.As Dempsey searched...