I couldn’t say anything as good as Charles and some of the lgf folks have today, so I won’t. Please check out the links below.
Never Again – this imagery is so dramatically well done, and absolutely fits the bill. As I remember standing just outside of the WTC, the papers fluttering and the persons leaping, are just like they were.
What We Heard has a link to an mp3 of a radio broadcast from 9/11/2001. I haven’t listened yet, but I’ll be putting it on shortly. I never heard this live, because I was in and out of my office between 9:20 and 9:50, and was outside most of the day. I expect it to be quite odd an experience.