Simon Shack's analysis of the available WTC7 footage of 9/11.

Much as the 9/11 airplane images were doctored / or entirely computerized (see 'SEPTEMBER CLUES'), the various footage showing the WTC7 collapse betrays irreconcilable discrepancies. While some early TV shots may have been simply retouched (to blur & conceal the explosiveness of the WTC7's demise), other subsequently released clips appear to be entirely fabricated imagery (digital video composites).

Other manipulations such as digital inserts of fiery smokeplumes (see at 1:11 and 2:45 of this study) were likely deemed necessary for added credibility as to the purported "weakening by large fires" of the WTC7 structure. It is worth reminding that as many as 7 buildings (the entire WTC Complex, in fact) were terminally damaged - and scores of vehicles in the area were charred / melted. All this, we are asked to believe, was caused by falling Twin Tower debris... To determine just what sort of conventional / non-conventional weaponry caused this mayhem is not within my field of research and competence - although I surmise all kinds were employed.