Extraordinary Video--Inside the Twin Towers

I had not seen this one before, but it is a terrific production and staggering in its depictions of the heroism and tragedy of that day:





There are 11 segments, some of them have A and B parts. You can find the rest of them here. Interesting moment: In Part 7, Frank DeMartini, who is often quoted making the "pencil into a screen" comparison of a plane not doing much damage to the Twin Towers, radios for a structural engineer to check out the integrity of the building.