There’s nothing odd about the timing (sigh); WTC7 had been hit by the collapse of WTC1. It had a gash that spanned multiple floors, it was bulging, leaning and burning. Fire-fighters were measuring its deformation, “up on the transit”. If there was ever a time for a weakness to show up, that was it.

I didn’t propose any scale. I said I thought a team working with the fire-fighters might have hastily demolished WTC7 on the semi-quiet, so that rescue operations could be resumed in the exclusion zone around it.