The collapse of World Trade 7 on the afternoon of 9/11/01 (a building not hit in that morning's events, and which suffered no structural damage) is one of 4 crucial questions that prevent me from accepting the government's conspiracy theory about what played out that day. This is a newly-discovered video of the collapse of WT7, which seems to show (at 21 seconds into the video) explosive events occurring on one side of the building.
(The collapse of WT7 is so anomalous that the official Kean 9/11 commission didn't even venture to offer an explanation).
Note: the video has no audio at all. Your speakers are not broken. Or at least this is not evidence that they are broken.