Comment by mallowdram

I suspect so. The case was made in 102 minutes, a NY Times book detailing how 18 people on or above the South Tower's impact zone managed to escape in one of the partially collapsed staircases. Were the stairs built to firecode specs in place in 1966, and not in the flimsy manner expedited by Rockefeller, these stairs would have easily survived intact long enough for many more than 18 to survive.