President Obama is funny, he's thoughtful, he's challenging, he's fun to work with - and it's been an extraordinary privilege.

I have been to Libya and walked the streets of Benghazi myself.

We're well aware, and we have been for a long time, that there is a real threat from adversaries, state actors, non-state actors, to hack us, influence us, destroy stuff through cyber means. Because cyber threat has been understood for a while, it's longstanding, it's a concern.

President Obama is perhaps the smartest person I've ever worked with.

What I would say about me is: What you see is what I get.

There was a hateful video that was disseminated on the Internet. It had nothing to do with the United States government, and it's one that we find disgusting and reprehensible. It's been offensive to many, many people around the world. That sparked violence in various parts of the world, including violence directed against Western facilities including our embassies and consulates.

There are no cookie-cutter solutions that you can apply from one circumstance to another. They're different. Our interests, as implicated, are different. The tools we have at our disposal are different.