know it's just a horizon, yet I believe we should strive to such horizon, and we are not doing this at the moment. You know, "Imagine all the people...".
Sorry mate, I just don't see it happening. You're forgetting that not only we're not the same, some of us are downright evil and destructive. What causes someone to kill innocent people, or rape? And these things have existed since ever. I don't see them changing soon. The only thing that can happen, is society and the social structure developing, so that these things happen less, or that they happen only in certain places, and all the 'good people' can stay away from it. And, yes, it's a beautiful song.

As for the Vietnam thing - maybe. Hopefully, the USA will be wiser this time, and actually bugger off once they've achieved their goal. I mean, what else can you do? They don't want you there, they don't want your culture there, they don't want democracy, and the only thing they WOULD like is your head on a platter. You don't stick around after you've punched someone, unless you are going to keep on mauling him.