We live in a world of absolute immediacy. It is an interconnected, combustible world, where technology and many other actions have given nonstate actors a reach, into countries and societies, for both good and evil, that we have never seen before. So it isn't a matter of just state versus state challenges or conflict. The bigger problem is nonstate actors.

You can't just drop the 82nd Airborne into Baghdad and it will all be over.

And I want every one of you, every one of us, 100 senators to look in that camera, and you tell your people back home what you think. Don't hide anymore; none of us. That is the essence of our responsibility. And if we're not willing to do it, we're not worthy to be seated right here. We fail our country. If we don't debate this, if we don't debate this, we are not worthy of our country. We fail our country.

I think this is the biggest lesson a president or any of us who has responsibility to govern have to learn: There are always consequences to actions that you take. There are consequences to inaction.

Foreign policy is all about a universe of bad decisions, imperfect decisions; every situation is different. The dynamics, the atmospherics, the people, the pressures, the geopolitical realities shift.

We live in a world of absolute immediacy. It is an interconnected, combustible world, where technology and many other actions have given nonstate actors a reach, into countries and societies, for both good and evil, that we have never seen before. So it isn't a matter of just state versus state challenges or conflict. The bigger problem is nonstate actors.

I'm the first secretary of defense that's had to deal with sequestration. I've prepared two budgets that deal with sequestration. And you bring the chiefs together, the leadership of this enterprise together, to work through, how do we then take these cuts? Where do we apply those cuts? Readiness is the first thing that suffers.