You know damn right well that this is a controversial subject and the journals are staying away from it right now, out of fear of reprisal. There may come a time when it is politically acceptable to publish on it.
(ahem)
A suggested cause of the fire-induced collapse of the World Trade Towers. By: Quintiere, J.G.; di Marzo, M.; Becker, R.. Fire Safety Journal, Oct2002, Vol. 37 Issue 7, p707, 10p.
Impact of the Boeing 767 Aircraft into the World Trade Center. By: Karim, Mohammed R.; Fatt, Michelle S. Hoo. Journal of Engineering Mechanics, Oct2005, Vol. 131 Issue 10, p1066-1072.
Could the world trade center have been modified to prevent its collapse?; Newland, D. E.; Cebon, D. Journal of Engineering Mechanics; 2002 Vol. 128 Issue 7, p795-800, 6p.
How did the WTC towers collapse? A new theory; Usmani, A. S.; Chung, Y. C.; Torero, J. L. Fire Safety Journal; 2003 Vol. 38, p501-533, 33p.
How the airplane wing cut through the exterior columns of the World Trade Center; Wierzbicki, T.; Teng, X. International Journal of Impact Engineering; 2003 Vol. 28, p601-625, 25p
Stability of the World Trade Center Twin Towers Structural Frame in Multiple Floor Fires. By: Usmani, A. S.. Journal of Engineering Mechanics, Jun2005, Vol. 131 Issue 6, p654-657.
Effect of insulation on the fire behaviour of steel floor trusses. Fire and Materials, 29:4, July/August 2005. pp. 181 - 194. Chang, Jeremy; Buchanan, Andrew H.; Moss, Peter J.
Use of High-Efficiency Energy Absorbing Device to Arrest Progressive Collapse of Tall Building Qing Zhou and T. X. Yu Journal of Engineering Mechanics 130, 1177 (2004)
A simple model of the World Trade Center fireball dynamics. Proceedings of the Combustion Institute 30:2, January, 2005. pp. 2247-2254. Baum, Howard R.; Rehm, Ronald G.
Structural Responses of World Trade Center under Aircraft Attacks. Omika, Yukihiro.; Fukuzawa, Eiji.; Koshika, Norihide. Journal of Structural Engineering v. 131 no1 (January 2005) p. 6-15
The Structural Steel of the World Trade Center Towers. Gayle, Frank W.; Banovic, Stephen W.; Foecke, Tim. Advanced Materials & Processes v. 162 no10 (October 2004) p. 37-9
WTC Findings Uphold Structural Design. Post, Nadine M. ENR v. 253 no17 (November 1 2004) p. 10-11
Recent advances in fire–structure analysis
Fire Safety Journal, In Press, Corrected Proof, Available online 20 August 2007,
Dat Duthinh, Kevin McGrattan and Abed Khaskia
Coupled fire dynamics and thermal response of complex building structures
Proceedings of the Combustion Institute, Volume 30, Issue 2, January 2005, Pages 2255-2262 Kuldeep Prasad and Howard R. Baum
K A Seffen,"Progressive Collapse of the World Trade Centre: a Simple Analysis", ASCE Journal of Engineering Mechanics, in press
A. Irfanoglu and C. Hoffmann, "An Engineering Perspective of the Collapse of WTC-1," J. of Performance of Constructed Facilities, ASCE, 06/2007; in press.
http://www.civil.northwestern.edu/people/bazant/PDFs/Papers/405.pdf
http://www.civil.northwestern.edu/people/bazant/PDFs/Papers/466.pdf
http://www.civil.northwestern.edu/people/bazant/PDFs/Papers/00%20WTC%20Collapse%20-%20What%20did%20&%20Did%20Not%20Cause%20It%20-%20Revised%206-22-07.pdf
it seems like there are plenty of journals publishing paper reguarding 9/11, and it is still a hot topic, one of these was published in august, 2 are in press, and one is still in the review process as far as I know.