In a letter to AIA members, Norman L. Koonce, Executive Vice President/CEO of the
American Institute of Architects wrote:

A number of firms from the design and engineering community have contacted
us to report recent or past requests for building plans that, in light of
the attacks of September 11, 2001, appear unusual due to the structures
identified in the requests or the type of information solicited. The
American Institute of Architects and the National Society of Professional
Engineers, in conjunction with the U.S. General Services Administration,
are coordinating with the Federal Bureau of Investigation (FBI) to provide
design firms with information on this situation.

Please follow this link ( ) for details and for
guidance on contacting the FBI if you or anyone in your firm has received
unusual or suspicious requests for information. Report, Vol. 3, No. 7 (Oct 2001).