The 50,000 Korean mercenaries we had in Vietnam were professional killers and just massacred people outright. And the American army did plenty of that too, but it couldn't take it after awhile. It's not the kind of job you can give to conscripts who are not trained to be murderers.

With regard to nuclear weapons, it's kind of hard to say. [Donald Trump] is said lots of things. The national security experts are terrified. But they're more terrified by his personality than by his statements.

I don't say you're self-censoring - I'm sure you believe everything you're saying; but what I'm saying is, if you believed something different, you wouldn't be sitting where you're sitting.

To construct a scientific theory from the data and to be able to recognize that it is a reasonable theory is possible only if there are some very sharp restrictive principles that lead you to go in one direction and not in another direction. Otherwise, you wouldn't have science at all, merely randomly chosen hypotheses.

One of the questions asked in that study was, How many Vietnamese casualties would you estimate that there were during the Vietnam war? The average response on the part of Americans today is about 100,000. The official figure is about two million. The actual figure is probably three to four million. The people who conducted the study raised an appropriate question: What would we think about German political culture if, when you asked people today how many Jews died in the Holocaust, they estimated about 300,000? What would that tell us about German political culture?

That's a large part of the source of the gun culture. You have to have a gun when you go into Starbucks, because who knows what's going to happen. It just doesn't happen in other countries.

On October 15, 1965, an estimated 70,000 people took part in large-scale anti-war demonstrations.