Even [Ernst] Hemingway, perhaps the most intentionally non-political of American writers, became passionately partisan during the Spanish Civil War.

Someday, I have no doubt, the dead from today's wars will be seen with a similar sense of sorrow at needless loss and folly as those millions of men who lie in the cemeteries of France and Belgium - and tens of millions of Americans will feel a similar revulsion for the politicians and generals who were so spendthrift with others' lives.

It sure is a rising tide, and we have a particularly nasty exemplar of it in the U.S., in Donald Trump.

I think in many ways, the Spanish Civil War was the first battle of World War II. After all, where else in the world at this point did you have Americans in uniform who were being bombed by Nazi planes four years before the U.S. entered World War II? Hitler and Mussolini jumped in on the side of Francisco Franco and his Spanish nationalists, sent them vast amounts of military aid, airplanes, tanks - and Mussolini sent 80,000 ground troops as well - because they wanted a sympathetic ally in power. So I think it really was the opening act of World War II.

I think [George] Orwell is right. There are certainly moments when political differences appear minor, and someone can claim to be non-political or to want to stay out of the fray, but today is not one of those moments.

In Canada, the U.S. and most of Europe it may be easy to take political stands, this is something for which you can be forced to pay with your life, or your freedom, in many other parts of the world, from Iran to Russia to Pakistan to China.

If your real wages are declining, your job is at risk, you fear your children will be worse off than you are, it's tempting to want to blame it all on an easily identifiable target: Muslims, immigrants, refugees, blacks, Jews.