On January 8, 2008, I submitted a FOIA Request to NIST asking for all records that relate to the fireproofing upgrades made to the Twin Towers prior to 9/11. I was recently successful in getting three new reports about the condition of the Twin Towers just prior to 9/11 released.
9/11 Blogger 
Tuesday, March 24, 2009
One report is a fire engineering assessment completed by Burro Happold in February of 2000. The other two reports were property condition assessments done by Merritt & Harris, Inc. a year or so prior to 9/11. These reports together total hundreds of pages, and I want them widely released so they can be analyzed in light of the NIST reports on the collapses of the Twin Towers. Note that the Merritt & Harris reports are very large files.
Merritt & Harris Report #1: http://www.megaupload.com/?d=NRZG0EYP 
Merritt & Harris Report #2: http://www.megaupload.com/?d=SXPY2FU6 
Burro Happold Report: http://www.megaupload.com/?d=42IO10P8 
Please report any interesting findings here.