It's kind of funny to read the work of ex-Marines and soldiers because what they said to me as a reporter was only a fraction of what they were thinking and feeling and saying to one another.

There's a great book about that, "The Breaking Point" by Stephen Koch . It won't improve your opinion of [Ernest] Hemingway.

Since I was a kid. I had this series by Ballantine Books about the history of World Wars I and II. In my 20s, it was the Vietnam War literature of novelists like Tim O'Brien, Philip Caputo, and Tobias Wolff, and then nonfiction such as "A Bright Shining Lie" by Neil Sheehan and "The Best and Brightest" by David Halberstam . Those are the two best histories of Vietnam.

Before the nineteen-seventies, most Republicans in Washington accepted the institutions of the welfare state, and most Democrats agreed with the logic of the Cold War. Despite the passions over various issues, government functioned pretty well. Legislators routinely crossed party lines when they voted, and when they drank; filibusters in the Senate were reserved for the biggest bills; think tanks produced independent research, not partisan talking points. The "D." or "R." after a politician's name did not tell you what he thought about everything, or everything you thought about him.

In a sense, whites who were always sort of the unthinking majority who didn't think of themselves necessarily as one among many interest groups but is simply the dominant group, now as whites become - are close to becoming a minority of Americans, are becoming a political interest group. And that's what Donald Trump is playing to. And it's a really dangerous, volatile game.

I think in the '50s, the percentage of Americans employed by the private sector who were in unions was above 30 percent. And now it's in the single digits, so it plummeted. And with the plummeting of unions came the weakening of an organized working-class voice in politics.

This is why mustard gas is such a danger or any weapon of mass destruction is such a dangerous thing because it - it's victims become everyone in the end.