I think that there's gonna be a lot of work to do in order to consolidate the transformations that I was interested in.

Sustaining the energy and focus involved in doing a good job I think starts to - starts to gets tougher the longer you do it.

Let's say I'm on the policy wonk end of the spectrum. As much as I can dive into a briefing book and really work to master various subjects that come before my desk, I'm still not an expert on a huge amount of the stuff that we work on.

Here's the truth: even if countries like the United States curb our emissions, if growing countries like India - with soaring energy needs - don't also embrace cleaner fuels, then we don't stand a chance against climate change.

We may come from different places and have different stories, but we share common hopes, and one very American dream.

We consume about 25 percent of the world's oil. We only have 2 percent of the reserves.

Torture is how you create enemies, not how you defeat them... Torture is how you get bad information, not good intelligence. Torture is how you set back America's standing in the world, not how you strengthen it.