Website that points out photo anomalies from 911 and also new articles on it

Eh, poor photoanalysis in my opinion. Many of these issues can be summed up to perspective and different lenses. The "missing guardrail" doesn't appear in ANY images except for that overhead view three days later. I suspect it was put up after the attack to separate the equipment on the other side of the path. With the yellow signs, there IS a photo that has the same damage to the sign in both images, proving it's the same one, but the pole to the right is missing in one of them. This is because the pole is on the other side of the walkway and the photographer is between the two objects. That was immediately obvious to me and after that, I lost respect for his analysis.

In conclusion, he's absolutely correct. Question everything, including his analysis. There may be some anomalies with pictures and it wouldn't surprise me if some things were retouched to change things if the government were in any way involved, BUT his analysis is not correct either.