They also had the only footage of the first plane hitting the tower. I had not seen that before.

I needed to watch this just to try to put some sense of order and sequence of events to that day. I found it oddly reassuring to be able to see events unfold from beginning to end. I came away with a feeling of comprehension and control.
I don't cry anymore. It took me a week to cry when the towers first fell. And several days to stop.