No more than a surgeon can operate while tweeting can you reach your potential with one ear in, one ear out. You actually have to reacquaint yourself with concentration. We all do.

There is a fair amount of competition, obviously, with ISIL and the terrorist networks around the world, China also posing a different kind of threat to the rules-based order.

What is most needed in Darfur is an international peacekeeping and protection presence, and this is what the Sudanese government most wants to avoid.

The U.S. government engages with many countries around the world in official dialogues on human rights.

I joke that I spent 38 years scouring the globe, going to war zones, trying to find the person with my exact birthday.

I think about Syria when I go to bed at night.

My kids are my salvation.... It's a delight to walk in and get charged by a five-year-old and a two-year-old. That'll make you forget the darkness.