How to put stuff in order.
I do not think anyone has bothered to put the pictures from the Flight 93 crash site in chronological order. I did. The scene is set aflame by the people in yellow and white suits. You are looking southwest towards a treeline. It is morning in the first frame.
Civilans arrive first gawk at hole. No smoking in the hole. No smoke in the trees. It is still morning and the sun falls to leave the treeline in shadow.

Yellow and white suited people arrive. Scare off the civilians and begin doing stuff. No one knows who these people were. No one knows what they were doing. Notice the exact location of the yellow suited man on the far side of the closeest foreground - we will call him Bob. Bob is going to plant something.

They continue to do it. There is no sign of any smoke coming from anywhere. The trees are still pristine. Bob surveys hit plant job.

Smoke! Fire ! The third guy from the left looks down at what just began smoking in front of his shoes. The wind blows gently from left to right in the frame.

Fire pours from the treeline. The yellow and white suits begin to melt into the treeline.

The fire department now arrives and is cleared to enter - only two yellow suited men remain. Whatever Bob planted now comes to life as smoke gently comes from exactly what he was standing over in the second and third photo.

The news arrives. John Q. Public watches. The lie that is the crash site becomes immortalized.