The loose change video is filled with half truths and complete lies. One of the more popular half truths out there is that steel melts at 1525 degrees C, but jet fuel only burns at 825 degrees C. The thing that most of these theories leaves out is that steel loses 50% of its structural integrity at 648 degrees C. Videos like loose change and 9/11 Revealed only tell half of the facts, because the other half of the facts proves their theories wrong. I dont have the time to go through and bring down these arguments point by point like the NIST report did, but these questions have been answered. There's nothing wrong with asking questions, but it just gets annoying when the questions have been answered, and you still ask them. I would recommend that people look at these quick factsheets before jumping on the conspiracy bandwagon.
Both of the government-sponsored engineering studies of the Twin Towers' collapses, FEMA's and NIST's, are highly misleading about the core structures. Neither Report discloses dimensions for core columns. dimensions that are clearly evident in the architectural drawings (now available to the public for the first time in 5 years). Both Reports use a variety of techniques seemingly designed to minimize the strength of the cores or to conceal their structural role entirely.
So effective was FEMA at concealing the nature of the cores that the 9/11 Commission Report , citing the FEMA Report, denied the very existence of the core columns.
FEMA's report seems crafted to hide the structural significance of the core columns, if not their very existence. Examples of features of the Report that minimize or conceal the core structures include:
-The absence of any illustrations showing core columns of typical dimensions
-The repeated use of the term "service core" to describe the cores, and avoidance of terminology describing their structural role
-The use of illustrations that imply the cores didn't exist
-The only photograph of a core column in the Report (Figure D-13) being of an atypical column of very small dimensions
-The inclusion of only floor plans that show core columns of very small dimensions with no clarification that the core columns that ran most of the Towers' heights were of much larger dimensions
In 2005 NIST published its 'Final Report of the National Construction Safety Team on the Collapses of the World Trade Center Towers' -- a 280-page report that was extremely vague in a number of respects, including any description of the structural systems of the Towers.