In what way do planted explosives not "make any sense?" If you want to demolish a building that is exactly what you do. Makes perfect sense. Apparently over three thousand architects & engineers with loads of evidence and questions gathered & analyzed over 18 years lack common sense. Maybe your vaunted common sense should give their evidence a look-over? Do you include POTUS in your list of people who never had any common sense to begin with? He is on record stating that there is no way those steel framed buildings were brought down by fire. It's never happened before in history, but on 9-11 it happened three times (one supposedly from a simple roof fire). It would seem my friend, that you are the one who is not applying common sense.