Thank you. The encasement of the cross bracing didn't make structural sense to me. I re-listened to Pete Sala's statement and I thought what you are saying, but I couldn't be certain (he was a bit vague). That steel is too big for concrete encasement and that would take months just to pour and cure. We don't have that kind of time (typically structural concrete has a 21 day cure to reach a hardness to qualify for loading and that would hold up any further progress. The only other reason for encasement is an old method of fireproofing. On the exterior of the building, that would not be required (and that method is not likely to be used). I agree that the steel does very little to stop from opening the walls to glass. The concourse question is a different one, but maybe they just take the "program" out of the corners. Maybe that's where they put new elevators and escalators.