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.

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.

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

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

I think one thing writers can do is point out that you don't have to say openly racist things, like [Donald] Trump, to be a racist or a xenophobe.

Speaking of Germany in 1933, I don't think you can remove yourself from politics when, in so many countries - the United States, Poland, Hungary, and many others - you've got politicians in power or vying for power who are taking tactics and elements of their appeal from the playbook of fascism.

Growing inequality is a huge problem, and of course is intimately connected to xenophobia and racism.