The Berlin Wall wasn't the only barrier to fall after the collapse of the Soviet Union and the end of the Cold War. Traditional barriers to the flow of money, trade, people and ideas also fell. ↗
I believe Johnson understood that the reason was Vietnam. I also believe that he felt that if there was a way to communicate the real issues in Vietnam, that the reasons would be answered or understood. But there was just no way to communicate. ↗
More than half the combat deaths in Vietnam occurred after Richard Nixon was elected on a promise to bring the war to an end, and after the American people had already decided that they did not want one more soldier to die in Vietnam. ↗
Because our homeland and very survival are once more at stake, the American people can't afford to treat this new war against terrorism like they did Vietnam. ↗
I'm sure it is, I'm not for any kind of war, we've been engaged in several wars since the second world war and we lost in Korea, we lost in Vietnam, they are political wars, they have nothing to do with any real threat, nor does this one. ↗