If the destruction of World Trade Center 7 was a professional job, then logic would extrapolate that the greater events of the day might have been prepared by a team of domestic professionals.

The reason that the implication is logical is that controlled demolition is a science of careful execution, of planning and thoughtful consideration of the physics of an individual structure. There is probably not a team of experts in the world who could plan and set the explosives that almost certainly destroyed WTC 7, within the timeframe of one business day, in a burning building, in a state of extreme local hazard, in the middle of Manhattan — a city that on that day was in a state of general emergency.

Danny Jowenko, The top demolition expert in The Netherlands, said in interview — on learning in-interview that WTC 7 had fallen on "the same day (as towers 1 and 2)" — "then they worked hard"*

That's the dry Dutch understatement. In any case, Mr. Jowenko made clear that in his opinion World Trade Center 7 fell by controlled demolition.