9-11 charities' missions continue to evolve ten years later

Once the immediate crisis passed, many 9/11-related charities broadened their mission to serve more people, such as rescue workers and their families or overseas victims of terror. Others have added educational programs to teach kids what happened on that tragic day.

The key: Adapt, or face irrelevance.

"You can't necessarily make an appeal for something that happened 10 years ago," says Jennifer Adams, CEO of the Tribute WTC Visitor Center in New York. "You have to have a current issue people want to support."