9-11/anomalies/collapse/debate

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WTC1 and WTC2 were destroyed by controlled demolition.

Controlled demolition goes from the bottom up, while the twin towers clearly collapsed from the top.

Standard protocols were probably not followed.

The demolition was not for legitimate purposes, so the demolition engineers were not necessarily constrained by convention, law, or ethics.

Top-down demolition is more in line with the goal of being frightening ("shock and awe"), since it is more dramatic.

Top-down demolition aids the goal of supporting the appearance of structural failure due to the impact, thus hiding the sabotage.

The pattern of attributes matches controlled demolition much better than any other previously-known cause of collapse.

WTC7 did collapse from the bottom.

It is extremely improbable that those planning such a complicated demolition would be able to predict the exact location the planes would impact the towers, and prepare the towers to begin falling precisely there.

They didn't have to know in advance; CD is usually radio-controlled. The demolition controllers presumably started the demolition near the impact points in order to support the appearance of structural failure due to the impact.

WTC2 did not fall straight down, as the North Tower and buildings leveled by controlled demolitions typically fall, but rather began tilting from the point of impact.

There are a number of reasons why an otherwise-controlled demolition of WTC2 might have resulted in the observed tilt.

If structural elements were being severed by thermite shortly before collapse, this might have been enough to start the top of the building tipping over before the main demolition began.

There is strong evidence that structural elements were severed by thermite.

Diagonally-severed beams were found in the rubble.

Thermite was found in dust collected after the collapse but before rescue operations had begun.

There is significant evidence that steel was being melted by something other than the impact fire minutes before WTC2 collapsed.

Streams of molten metal were seen pouring from one corner.

The impact fire never reached temperatures sufficient to melt steel.

The tilt might have been an extra bit of drama to add to the "shock and awe" effect.

Some elements of the controlled demolition rig might have been set off prematurely, either due to events within the building (metal beams falling and shorting something out, heat from the fire melting something and crossing wires or initiating some chemical process) or due to human error on the part of the remote control operator(s).