For those interested in engineering aspects of the World Trade
Center collapse that resulted from the attacks on 2001/9/11, the
FEMA report, "World Trade Center Building Performance Study",
prepared for the House Committee on Science of the U.S. House of
Representatives is available on the WWW, at:

http://www.house.gov/science/hot/wtc/wtcreport.htm

Be forwarned: it's a huge download, comprising 21 separate .pdf
chapter and appendix files totalling nearly 45 megabytes.

Fascinating reading, though.

DD

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