This video narrates a collection of diverse phenomena
in the debris cloud of the South Tower
that point to explosive demolition.
[youtube]DChR1XcYhlw[/youtube]
Particularly notable is one projectile
(which I have not seen discussed previously)
that is shooting to the east, then stops, midair,
then turns a sharp corner and shoots straight down
trailing white smoke.
White smoke is characteristic of aluminum oxide
which is a byproduct of the thermite reaction.