Lauren and Greg Manning stand with their sons Jagger and Tyler (right) at the Central Park Zoo in 2010. Manning became a symbol of survival after the Sept. 11 attacks, where she suffered burns on more than 80 percent of her body. Courtesy Lauren Manning hide caption

Parents bring their children to school near a mosque at the Islamic Center of San Diego, Sept. 19, 2001. The current head of the center says before Sept. 11 the Muslim community was insular. He now hosts interfaith meetings and participates in community groups. David McNew/Getty Images hide caption

A U.S. Department of Homeland Security sign hangs in an empty terminal at the Tri-State Airport in Ceredo, W.Va. Jeff Gentner /AP hide caption

Michael Gordon's young son provided the title to his father's composition, The Sad Park. iStock hide caption