Possibly. Or the Sears Tower might have collapsed faster and more catastrophically than the World Trade Center towers.

Each of the WTC towers was a single tube, designed to withstand almost any blow. The new issue of the CTBUH Journal, published by the Council on Tall Buildings and Urban Habitat at the Illinois Institute of Technology, is devoted to 9/11, and structural engineers Gene Corley and David Drengenberg say this:

“Although WTC 1 and WTC 2 ultimately collapsed, they withstood initial structural damage for 102 and 56 minutes, respectively. Redundant and robust exterior steel frame and hat truss construction provided for load redistribution around areas of impact damage, bridging large, damaged areas. . . . Calculations show that, if not for the damage caused by fire, these structures could have remained globally stable.”