at the time.. i worked for an environmental architectural firm… asbestos… word was the towers were asbestos traps, too much money to clean… if the tower owners did an official asbestos report.. they would had to lock/sealed them up… worth too much money to do that… after the collapse… all that dust… i cringed…
another case, local mall didnt want to close to remove asbestos… put up sign.. excuse our dust while they removed it.. another case, of an unofficial report … cringe..