It would be a huge mistake to abandon democracy promotion. Peaceful political change has been enormously successful in the past years in Eastern European countries as well as in countries like South Korea, South Africa, Chile and Indonesia. However, if possible, the use of force is something to avoid except in cases where genocide is threatened, like Bosnia or Libya or with regimes that threaten our security, like the Taliban and Saddam Hussein.

Sometimes corruption is slowed by shedding light into what was previously shadowed.

The truth is that for reasons that have a lot to do with the U.S. government bureaucracy, we settled on the one issue that everyone could agree on, which was weapons of mass destruction, as the core reason.

We are already seeing a degree of instability in the world because Obama seems to have consciously wanted to step back. Donald Trump is going to be "Obama squared," a more extreme version of the same thing.

Putin is behaving in a very dangerous way. And Donald Trump sounds as though he would simply sit back and allow that to go on. I worry about where that would end up.

For the private sector to flourish, special privilege must give way to equal opportunity and equal risk for all.

I mean, we're going to probably debate the Iraq war for at least as long as I'm alive.