So if somebody wants to build a coal-powered plant, they can; it's just that it will bankrupt them because they're going to be charged a huge sum for all that greenhouse gas that's being emitted.

Unless you're one of the first Americans, a Native American, you came from someplace else. Somebody brought you.

Think about it: Iran, Cuba, Venezuela - these countries are tiny compared to the Soviet Union. They don't pose a serious threat to us the way the Soviet Union posed a threat to us.

We're starting to make some progress. But there's still gonna be some pain out there. If I don't have this done in three years, then there's gonna be a one-term proposition.

Iran is the latest expression of a deep, ancient, powerful culture that's different than ours. And we don't know how it's going to play itself out.

That is another theme in the book [Dreams from My Father]. How do we exercise more empathy in our public discourse? How do we get the black to see through the eyes of the white? Or the citizen to see through the eyes of the immigrant? Or the straight to see through the eyes of the gay? That has always been a struggle in our politics.

We know we can't stop every act of violence, every act of evil in the world, but maybe we could try to stop one act of evil, one act of violence.