The larger picture here is that a North Korea with nuclear weapons adds to the larger proliferation risk.

Like democracy itself, jazz has structure, but within it you can say almost anything.

If we are to garner sustained U.S. domestic support for future trade agreements, we have to make sure those Americans who have suffered as a consequence of past agreements have an effective social safety net, adjustment assistance, opportunities for retraining and new job creation that enables all Americans to thrive.

Progress is the product of human agency. Things get better because we make them better. Things go wrong when we get too comfortable, when we fail to take risks or seize opportunities.

We also have begun to assess with the Ukrainians the scope of their larger security assistance requirements. We have had teams out making that assessment with the Ukrainians. And we have already provided various forms of equipment and support to Ukraine.

One can't erase the tremendous burden of apartheid in 10 years, 20 years, I believe, even 30 years.

Americans understand that our security is enhanced when the United States is trusted and respected in the world.