Comment by mallowdram

Article neglects that the WTC defied NYFD building codes on egress. If the code was applied as existing in 1966, it would require 8 or 9 fireproof staircases. Instead Rockefeller asked for and got a pass and the building instead had three staircases embedded in six layers of drywall, which is far else than the then standard fireproofing (brick encased). Not only that, they had non-standard transit corridors that wove egress routes around the two sky lobbies.