After 9/11/01, in lower NYC, there were building located blocks away that had to be shut down due to the attack. One business that comes to mind is Burlington Coat Factory - the structure was near Park Place, wasn't even in the WTC complex, and was determined to be unsafe for occupation:

From Burlingtonā??s Website:
Burlington Coat
45 Park Place
New York, NY 10007-2404
212-571-2631
Closed 9-11-01
until further notice

There will be "Blasting" at thge WTC site, starting today, and every other day, for the next 56 days - to clear the area for the WTC memorial.

ConspiracyDebunking