Foucault & Jehovah's Witnesses

Had a knock on the door the other day; usual gang of Jehovah's witnesses, although they had a new questioing tactic this time. They asked me...."where do you think power really lies in the world ?".

It was then that I weighed up the relative merits of a) delivering an hour lecture on Foucault's thesis on practices and disciplinary power or b) closing the door....have to say I chose the latter.