Holly Richardson: These lessons we need to #NeverForget
(Beth A. Keiser | Associated Press file photo) In this Sept. 13, 2001, photo, an American flag flies over the rubble of the collapsed World Trade Center buildings in New York.
(Beth A. Keiser | Associated Press file photo) In this Sept. 13, 2001, photo, an American flag flies over the rubble of the collapsed World Trade Center buildings in New York.