The comment that caught my eye, which I haven't seen anyone else notice, is the one where Kerry opines that there is not going to be a bloodbath in VietNam when we pull it.
Thats the one that sticks out in my mind the most. Then, O'Neill counters with all the details and facts of the "bloodbath" that had already occurred when the North Vietnamese took power, and the numbers of refugees who fled to the South (many of them were Catholic Vietnamese who wanted religious freedom).
O'Neill even asked Kerry if he would accept it if the US were not involved, and if North Vietnam were not involved, and let the South Vietnamese sort it out for themselves. I don't think Kerry responded to that, but we all know what scenario he wanted.