Please understand that I agree that the war wasn't "winnable" and that too many agendas were wrapped up in a perfect storm that managed to ramp it up to an obscene degree. I've mentioned earlier watching TV news in the late '60s and wondering why we couldn't "win" and come home, and wondering if I was going to be drafted, too...
It was a tragedy for too many people and had ramifications far beyond what too many Americans think they know (Khmer Rouge, especially).
While we as a country do need to understand that war, its causes, our actions, and the aftermath much better than we do, my comment was to try to express my feeling that it would be pointless to try to have a national conversation about it now. The Republicans can't agree that we need to fund the government and protect its "full faith and credit". They have spent 5+ years trying to convince people that the president is a foriegner who wants to throw them in internment camps. There is no conceivable way that I can see that a rational discussion can be had with them when it comes to what Vietnam means and what happened there. Something that we don't need now is yet more screaming from the Teabaggers and the crazies. :-(
When's the right time? Unfortunately, like some of the CrookedTimber comments say, its probably after that generation has passed. Kerry and others tried during the "Winter Soldier" meetings. And yes, it would have helped to have that conversation before we invaded Iraq, and millions of people in the streets tried to make that happen, but it didn't work. :-( We're a stubborn bunch...
You may be right that we need to fight them now, or fight them later. I dunno. I've got too many memories of voters being swayed by crap like flag burning amendments and "traditional marriage" to think that rationality would finally win out this time. As "fuckwit" said in an earlier comment from B-J, you don't want to get people angry - you want to get them determined to make things right. Change doesn't come unless some large fraction of the middle can be persuaded to join you - and they don't do that if they're thinking with their vestigial lizard brain...
My $0.02.
Cheers,
Scott.