:It's true there was no structural damage, (good research) but I had read somewhere, some time ago that dust from the twin towers falling had infiltrated the building and damaged the interior. A half mile is not far for such a cloud of dust and debris to travel. Also this source says "Status: Inspected but not affected.*" but then goes on to qualify that statement by saying "Status of this building was obtained by matching Building Structural Status map and Transportation and Public Access map from OEM. Status may not be accurate, if you know the status of this building, please e-mail webmaster@preserve.org and let us know." So its entirely possible there was minor damage such as concrete dust. So I'll look for that source, and we can add some info per the source, later on. Thanks for your vigilance. —  • Talk •