In what ways did 9/11 change the American people or culture? How should the attacks be taught to future generations (at what grade level? In how much detail)? The memorial is appropriate and does it convey enough information to the visiting public? Should any additional items be added to the memorial?

In what ways did 9/11 change the American people or culture? How should the attacks be taught to future generations (at what grade level? In how much detail)? The memorial is appropriate and does it convey enough information to the visiting public? Should any additional items be added to the memorial?