Contained within the 2008 History Channel documentary "102 Minutes That Changed America" is video depicting what appears to be molten material within World Trade Center tower 2 on September 11, 2001, similar to other molten material filmed nearby. Molten iron is a product of thermitic reactions.
Previously recorded molten material originating from within the northeast corner of the 80th floor of WTC 2 moments before its collapse:
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