This photo has been discussed at JREF. That forum is "noisy" and hard to read so I will extract the best arguments claiming it is faked.
The JREF discussion involving Christopher7 is linked below.
http://forums.randi.org/showthread.php? ... ost2996595
Quite a lot of information around the link above.
It is compared with a photo by Aman Zafar below
The link to the Zafar photo is below. It is the last one before the night shots at the bottom of the page:
Among the arguments trying to explain the obvious difference in photos were:
- Optical illusion (refraction)
The Zafar photo shows the same damage but the angle fools us
The NIST photo was taken after the Zafar photo
I feel it is easy to debunk the first 2 explanations and Christopher7 makes some cleaver arguments involving shadows regarding the third.
I hope we can put forward the best arguments for forgery and against in this thread without the noise to which JREF is subject.
I'll be doing the "for forgery" portion.
And let's keep in mind that if this photo is faked, being taken by helecopter and having an NYPD stamp on it, evidence for high level manipulation of 9-11 evidence is rather damning.