FURTHER CLUES OF 9/11 IMAGERY FRAUD
Thanks for this gif, Equinox. (from this post of yours about photojournalist-fraudster James Nachtwey: http://cluesforum.info/viewtopic.php?p=2361828#p2361828 ).
It inspired me to make a little comparison:

The first problem with these 2 images is that, since they are framed exactly identically (yet show two different, apparent time frames) we have to accept the rather unlikely notion that Nachtwey was using a tripod while snapping away in that rubble. But let's assume - 'in fairness' - that this was the case.
Now, let's have a look at the below comparison. I have measured the respective heights of 2 firefighters: the one on the left - let's call him "Phil" - would appear to be (or meant to be) the very same man in both images, while the one on the right ("Mr.X") may very possibly be a different man.

As "Phil" takes one step forward (lower image), he shrinks by a hefty 16% - while "X" grows by 12%. Now, one could argue that both "Phil" and "Mr.X" are just different persons. I will therefore not call this particular analysis a conclusive proof of fakery, but only encourage everyone to ponder about the following aspects:
In order for these 2 images to be authentic and legit, we must accept that:
- James Nachtwey was using a tripod - or held his camera dead steady for both shots.
- The extremely poor quality of Nachtwey's lower image is just due to heavy resolution-loss accumulated through multiple, ruinous conversions/compressions.
- "Phil" and "Mr.X" are not the same guys in both images - and this explains their (rather hefty) height/size differences.
If you are comfortable with that, let's just move on - nothing to see here, folks.

Personally, I am now more comfortable in my belief that these firefighters are just add-on figures, pasted over those rubble sceneries:
