We are so isolated in our own little worlds, in our own little geographies, that it's pretty hard to understand where someone else is coming from. And so I think that we have to really think about what that means as a country and, frankly, whether this segregation that we have is durable over the long run.

As a culture, working-class white Americans like myself had no heroes. We loved the military but had no George S. Patton figure in the modern army. I doubt my neighbours could even name a high-ranking military officer.

We need to think about how we teach working-class children about not just hard skills, like reading and mathematics, but also soft skills, like conflict resolution and financial management.

People in my hometown voted for President Reagan - for many, like my grandpa, he was their first Republican - because he promised that tax cuts would bring higher wages and new jobs. It seemed he was right, so we voted for the next Republican promising tax cuts and job creation, George W. Bush. He wasn't right.

After four or five different wars, I grew weary of that work, partly because in an open war, open to coverage, as Vietnam was, it's not that difficult, really.

Changing the DNA of a large, multilateral organization such as the United Nations to deal effectively with modern threats is not easy. Indeed, when the United Nations was created in the wake of World War II, threats came almost exclusively from one state carrying out acts of aggression against another.

When I looked into the lives of the Chinese saints, I discovered that many of them had died during the Boxer Rebellion, a war that occurred on Chinese soil in the year 1900.

Hamas is responsible for countless homicide bombings that have killed hundreds of Israeli citizens. They have waged a terror war with the sole intent of murdering innocent people.