This brilliant bbc documentary looks at how the twin towers collapsed on 9/11/2001 with comments from wtc chief engineer leslie robertson, nist engineers/investigators and leading engineers from the american society of civil engineers, see how the towers were of a unique design and see how towers 1&2 collapsed from different reasons, see how investigators mark the important debris columns "save" for further study.
this documentary is hidden by the truth movement leaders,see why!
this video has been cut up into 5 parts so it can be uploaded on youtube and other video hosting sites.
bit rate:777 kbps
size: 640 x 480
video quality 8/10
audio quality 8/10
total size: 250 mbs