That's the rule Swing Dangler is pushing. Now watch him run away from his own logic:
We walked over by number Seven World Trade Center as it was burning and saw this 40-plus story building with fire on nearly all floors. –FDNY Lieutenant Robert Larocco
I walked out and I got to Vesey and West, where I reported to Frank [Cruthers]. He said, we’re moving the command post over this way, that building’s coming down. At this point, the fire was going virtually on every floor, heavy fire and smoke that really wasn’t bothering us when we were searching because it was being pushed southeast and we were a little bit west of that. I remember standing just where West and Vesey start to rise toward the entrance we were using in the World Financial Center. There were a couple of guys standing with me and a couple of guys right at the intersection, and we were trying to back them up – and here goes 7. It started to come down and now people were starting to run. –FDNY Deputy Chief Nick Visconti
When the building came down it was completely involved in fire, all forty-seven stories.
–FDNY Assistant Chief Harry Myers
If eyewitnesses say they saw it, it must be so.
Right, Swing?