The Atlas reference was a mataphor
Notice I did say, "two reborn Atlases." The twin towers were the center peice of the NY skyline and did, to me anyways, look like they were holding up the sky. I think that they should be rebuilt as close to the originals as possible.
My idea for placing fireman poles throughout the building to connect the floors in case the elevators or stairs are knocked out would help to ease peoples minds.