You're right, I didn't see the joke. Anyway, what I said in #190 is, "Our children won't care and by that time it will be nothing more than a side-note to history." Didn't say WE won't care. I will always be fascinated by the whole thing. But my 18-year-old son couldn't care any less than he does.
As has been pointed out on this thread, a coverup in this case by the government would send shockwaves and do even more to undermine its credibility. Things like this never stop being relevant.
One of the legitimizing myths of our government is that it serves the people and is open and just. I know, I don't believe it either, but many do and that's how society functions. A gov that plans, executes, and hides the murder of its foremost figure would be seriously damaged as a legitimate institution.
That's why other govs that have past crimes do so much to distance themselves from that regime. Germany doesn't go around calling its leader Der Fuhrer (or Die Fuhrerin, as the case may be). I'm 25, this happened way before my time, yet still affects me and interests me.
My sons are in their 30's with children of their own. They would care. Your son is young, but there is hope that as he matures he will search out the truth. I have always suspected it was a Castro/Mob connection, with Oswald being the useful idiot. Makes more sense to me than other theories floated.