This video was obtained via a freedom of information act (FOIA) request, and shows the World Trade Center 7 building (WTC 7) on 9/11 collapsing via a controlled demolition.
You can clearly hear deep explosion sounds followed by the penthouse collapsing, then the entire building collapsing.
The authorities deny any controlled demolitions from occurring on September 11 2001, and they say WTC 7 collapsed due to fire. Have a look at the video and below and let us know what you think.
Here is another video showing the collapse of WTC 7.
In the clip below you can hear audio of an explosion going off before WTC 7 collapses. The explosion and collapse obviously surprise a group of nearby fireman.
The video below contains eyewitness accounts of the WTC 7 collapse.
According to the video description:
New analysis by David Chandler on the sound evidence of WTC7 explosions.
There is ample evidence, from both witnesses and recordings, of explosions associated with the destruction of World Trade Center Building 7 (WTC 7).
NIST sidestepped investigating explosions and explosives by setting up an artificially high threshold of interest.
They swept aside any testimony or recordings of explosions that would not register 130-140 dB one kilometer away.
They established this criterion using RDX (one of the loudest explosives) in a scenario that produced a far higher sound level than other possible uses of explosives to bring down the building. Then they turned around and used sound level as the sole criterion for deciding whether the use of explosives was a credible hypothesis.
By this maneuver, they sidestepped investigating the testimony of explosives or possible evidence of explosive residues.
This is just one more instance of fraudulent behavior on the part of the NIST investigation of the World Trade Center disaster.