By the way, since 14Russian thinks I've done no "research," I must ask whether 14Russian has ever "researched" sites like Debunking 911 Conspiracy Theories and Controlled Demolition Homepage -- which, let it be noted, is skeptical of the "alternative" theories, and not skeptical of the "official version" (or at least the scientific aspects of the "official version"). And it goes into rather exhaustive detail about the specific claims made by the conspiracy theorists -- as well as the information that conspiracy theorists DON'T discuss.

Just as one example, here's a diagram of the debris field from the two towers, from the sub-page devoted to WTC 7:



Why is this significant? Because, while conspiracy theorists make a big deal about the fact that WTC 7 wasn't hit by a plane (implying that there was no major structural damage) the building was hit by large and heavy pieces of WTC 1! And we know from photographic evidence that debris from the North Tower struck WTC 7 in way that damaged some of the support columns in the lower half of the building (i.e., there was the weight of perhaps 25 or more stories above the weakened section). Moreover, the region struck by heavy debris was in the zone where the emergency generators and their fuel tanks were located.

Of course, these observations don't prove that the fires started by falling debris (plus the damaged steel columns on the building's southern side) were sufficient to collapse WTC 7. Nor do they disprove that there were explosives already in the building. But what this page shows, IMHO, is that conspiracy theorists vastly overstate the importance of WTC 7 as a "SMOKING GUN!!!!" that can only be explained by a huge gummint plot.