You hit on a key point here. Not only must they be told to our children, but also by them. When I was in graduate school (M.A. History, 1992) I could not fathom why the department offered nothing on Vietnam. Not a survey, not a lecture, not a graduate seminar, nothing. The entire faculty was your typical pseudo-sophisticated, intellectually-fraudulent, hand-wringing, liberal, hate-America crowd. Just like now.
Considering their side won the war (at least to hear them tell it), and there was fertile ground for them to validate the Jane Fonda, war-protesting, draft-dodger outlook on it, they still wouldn't go near it. And it made no sense to me then, but it's beginning to now.
Almost the entire faculty were war protesters, draft dodgers, or professional students when the war was raging. The judgment of history is beginning to come clear on this:
Those of us who served stood the test of fire, and they didn't. And they're ashamed of their own cowardice.
So don't expect anything resembling a "scholarly" approach to Vietnam from the current generation of history professors. They're a disgrace. Damn straight we're going to have to wait for future generations to tell the tale. And damn straight they'll do a better job of it than the current crop of gutless cowards who occupy tenured faculty positions at American universities today, all snug, safe and secure from such things as termination for cause or intellectual honesty.