President-elect Trump has said he would like to improve relations with Russia. His choice for defense secretary views Russia as America's number one threat.

Karachi has had an overdose of history, too much has happened.

India may be overtaking China as the world's most polluted country. Even now, which country is worse depends on the day.

When the Defense Department was established after World War II, a law said that any defense secretary with military experience must have been out of the military at least seven years. General [James] Mattis doesn't meet that.

[Mark] Lilla sees a deeper problem, and he wrote an article in The New York Times denouncing identity liberalism.He says liberals have appealed to African-Americans or women or the LGBT community but failed to craft a strong, broad national message. He's not the only person saying this. Long before the votes were cast, Bernie Sanders argued the Democrats lost the white working class by not speaking broadly to the country.

I've just been flooded with emails of people just giving testimonies of their lives, saying exactly this. I got an email from a guy who works for some sort of defense contractor, some lower-level job, served in the military. And he said, look, I served in the military with black and Latino soldiers. My supervisor is a young black woman who's smart as a whip, and I admire her, and we get along great.

People don't know where they stand and what they're going to lose, and that makes things uncertain. The political parties try to meld people together, but then that becomes a problem. There are parallels here, to American cities, which, in the '80s, with massive rural to urban migration, saw incredible amounts of violence.