I'm kind of curious how the whole WWII seminar would work. Would you not be required to demonstrate some level of credibility through obtaining some sort of certification through a degreed program before they allowed you to teach a seminar? I mean, if not, what's to prevent you from suddenly deciding to teach vector calculus or some other such thing?

That is not meant to suggest that you could not teach a seminar on WWII. Clearly this has been a long-standing interest of yours; and you obviously have studied it a great deal. I'm just curious as to how/why the university would let you do this ...