The FEMA "investigations" into the WTC collapses: Chapter Two - WTC 1 and WTC 2. (tags)
The Federal Emergency Management Agency FEMA released a series of "investigations" into the World Trade Center collapses. This is Chapter Two from the report. It "investigates" the collapses of World Trade Center One and World Trade Center Two. Comment has been added in red. Click on images for larger pictures.