Gayle observes the six-year anniversary of the September 11, 2001, terrorist attacks by speaking with Kevin and Katie McAvoy, two siblings who lost their father in the attacks. Kevin and Katie are both members of Tuesday's Children, a family service organization dedicated to supporting the families of September 11 victims and helping them to achieve their full potential. Gayle talks with Kevin and Katie about honoring the memory of their father, the tragedy's lasting impact on their lives and their hopes for the future.