Chuck Hagel: “We, as a Nation, owe it to them for the sacrifices they have made.”

Climate change is a national security threat.

I don't believe so, because there will be a question of trust and confidence in the panel, the makeup, if it's not transparent.

Iraq's continued political progress toward a more inclusive and representative government and its programs of reform and reconciliation will be critical to achieve the progress required.

It is the biggest responsibility any leader has, to leave the place better than they found it, and I do not think we are doing it right now.