No one will remember that President Obama supported the Arab Spring if it eventually fails and the region collapses back into the political Dark Ages. If we actively engage these movements with advice, with money, and, when necessary, with military force, then we get a vote in how it all turns out.

Bad news is dramatic. It makes good TV. If there's a firefight on the same day that a school opens up, the media will show the firefight even though the school is way more important and will affect the community for much longer.

I went to Afghanistan in '96 to write about terrorist training camps south of Jalalabad and Tora Bora, in the mountains. I was there right before the Taliban took over, literally a few weeks before they took Kabul. The frontline wasn't terribly active, but it was definitely there. And they swept into power.

If hardship brought out the worst in people, the human race wouldn't have survived. Right after 9/11, for instance, the murder rate actually went down in New York City. In World War II during the Blitz, the civilians of London were bombed almost every night for six months, but psychiatric admissions declined.

Ironically, though our society of affluence brings safety and stability, it doesn't bring psychological health. As wealth goes up, suicide and depression rates tend to go up. I read one study that compared women in North America with women in Nigeria, and the group with the highest rates of depression was urban North American women, which is the wealthiest. Now, there are obviously huge stresses that come with poverty, but the poorer the society, the more collaborative people have to be.

There's no reason to do anything twice, and certainly no reason to do something that almost killed you.

Soldiers join the military to serve their country, but when bullets are flying, it's hard to fight for an abstract notion like patriotism. They're fighting for the people standing next to them, and it doesn't matter who's a Republican or a Democrat, or who's black or white or Christian or Muslim or gay or straight. If Congress and all Americans could manage to ignore those differences, we would have a perfect country, but somehow we cannot rise to that level of nobility.