Daughters of 9/11 victims seek answers about accused mastermind's trial

A new documentary, "Daughters of 9/11," follows their pursuit of information and closure, which they were determined to find for themselves, other families who lost loved ones in the attacks and the American public.

A new documentary, "Daughters of 9/11," follows their pursuit of information and closure, which they were determined to find for themselves, other families who lost loved ones in the attacks and the American public.