Big Fake

At first glance, this late-appearing "second hit" footage is quite convincing.

But it is a hippityhopper: It has half the frames of a normal video.
Duplicates during the "plane" sequence provide ease of animation.

hippityhopper stills:

stills of the explosion

Nature wasn't good enough for the Big Fakers. To attempt to hide how long the spire stands tall before it mysteriously turns to dust, there is a second shadow collapse layered over the first.

And from "Perpetually Inquisitive":

Just noticed another interesting anomaly in that 'new' footage. At the
1:08 mark, after the camera zooms back out, if you look at WTC7 you can
see the 'outline' of a person reflected in the window, it is very faint,
but you can still make out that this person seems to be holding a cell
phone up to the side of their face (1:08-1:16).

Wasn't it in 'Rising Sun' that there was a part where they used
computers to 'erase' a reflection of the murderer from the windows in
the hallway?

Smoke and Flashes from the vicinity of the Woolworth Building

Archived footage:

http://thewebfairy.com/911/video/collected/wtcbig.divx.avi

From Spooked911, the author of
http://covertoperations.blogspot.com/

http://www.devinclark.com/info.htm

"As an animator Devin has been involved in projects including work for
Comedy Central, The New York International Film Festival, and the
Cartoon Network applying his animation skills to everything from
corporate graphics to traditiona cartoons. His illustrations have been
used various projects ranging from maps for the National Park Service
to character design for Kid Robot toys. He is presently running his
own animation shop in Brooklyn where he continues to draw things and
make them move."

He does high quality video animation if you watch "The Carpet Game" here:
http://www.bodyatomic.com/video.html

He also has 9/11 footage at the same site, with second hit footage
very similar to what CNN showed early on.

He has a blog:
http://devinclark.blogspot.com/
title:
"Bullshit Quarterly. Give this man a medal, then shoot him."