The Twin Towers were built in the early 70’s... over 40 years ago. I highly doubt it.
I found this:
Many people enquired about the presence of asbestos at the World Trade Center (WTC) last week. At that time I had no information about this subject. In awe of the superhuman efforts being made to locate survivors, I felt it inappropriate to highlight these questions. Since then, information has been forthcoming about the use of asbestos on the twin towers. One contact informed me that prior to the complex being built, the New York Port Authority had planned to use 5000 tons of asbestos-containing sprayed fireproofing on floors 1-40 of the buildings. Above the fortieth floor, non-asbestos alternatives were to be used. This is confirmed by an article which appeared in the New York Times on September 18, 2001: “Anticipating a ban (on the use of asbestos in construction in NY), the builders stopped using the materials by the time they reached the 40th floor of the north tower, the first one to go up…” According to a spokesman for the Port Authority “more than half of the original, asbestos-containing material was later replaced.”
Here: http://ibasecretariat.org/lka_world_trade_center.php
Hmm, thanks. I thot I had heard something to that effect.