President Obama has made the Asia Pacific region a focus of his foreign policy, and Vietnam - a large, growing economy in the heart of Southeast Asia - is critical to those efforts.

I think one of the critiques of me is that I thought I knew it all. But I was learning from the enormous resources available within the U.S. government who have a very different view of the world than many of the people commenting on foreign policy from outside of the government.

When it comes to Israel's security, our military and intelligence cooperation, that's off limits. That's protected. That's sacrosanct.

Talking and diplomacy is often seen as a concession in America, in a way that it is not in other places.

It is important to have leadership groups, but at the end of the day I need to be taking the call because I'm responsible for the team and I should know exactly what I'm doing and I believe in that.

The young people I teach now know they are being sold down the river before we even start studying the trends and numbers. That's the toughest part of being a high school economics teacher... being a witness when our children realize that the greatest deficit of all is a deficit of leadership.

The greatest moral leader of my lifetime was Dr. Martin Luther King Jr., whose private life does not bear close examination.

No matter how powerful our political and religious leaders think they are, they are as dust before the immense and implacable forces of history and progress. I just hope that they don't make too much of a mess or take too many more people down with them.