Something like fifteen minutes
I was driving to work that morning and had tuned into a radio station as it was reporting on the first airplane hit. If I remember correctly, the second plane didn't hit until I was almost at the office (remembering the damn-stupid question by the female CNN talking head, whoever it was, "Could this be a terrorist attack?")
Where each demon is slain, more hate is raised, yet hate unchecked also multiplies. - L. E. Modesitt