I think writers can respond by writing about the refugee crisis, by looking at problems faced by migrants, by trying hard to portray them as the human beings that they are.

Things have gotten openly more extreme in the last few years. I was lecturing in Hungary, whose prime minister, Victor Orban, is an example of this trend. All over Budapest, statues have been replaced, museum exhibits have been redone, to turn ethnic Hungarians, not Jews, into the prime victims of the Germans during World War II. Five years ago, who would have thought this possible?

Compared with how we've ducked it in the United States, Canada should be really proud of how you have welcomed a significant number of refugees - far more, in fact, than we Americans have, even though our population is vastly larger.

In his fierce, bold determination to see the lives of modern-day slaves up close, Benjamin Skinner reminds me of the British abolitionist of two hundred years ago, Zachary Macaulay, who once traveled on a slave ship across the Atlantic, taking notes. Skinner goes everywhere, from border crossings to brothels to bargaining sessions with dealers in human beings, to bring us this vivid, searing account of the wide network of human trafficking and servitude which spans today's globe.

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.

Newt Gingrich seldom misses a chance to note that he is a historian.

Work is hard. Distractions are plentiful. And time is short.