In the wake of 9/11, my meetings with Arab and Pakistani Americans, for example, have a more urgent quality, for the stories of detentions and FBI questioning and hard stares from neighbors have shaken their sense of security and belonging. They have been reminded that the history of immigration in this country has a dark underbelly; they need specific reassurances that their citizenship really means something, that America has learned the right lessons from the Japanese internments during World War II, and that I will stand with them should the political winds shift in an ugly direction.

What we can do is to shape how that process of global integration proceeds, so that it's increasing opportunity for ordinary people, so that it's creating better jobs, so that we are strengthening protections for workers, so that we are addressing some of the environmental challenges that come with rapid growth.

We have to have better intelligence. We have to have better interdiction capabilities. And so the issue is not how much we spend or how hard we try; the issue is are we doing it the right way? Are we being smart about it?

I think the Turks' willingness to take seriously action on the borders to stop the flow of foreign fighters joining ISIL is significant.

This counter-terrorism campaign will be waged through a steady, relentless effort to take out Isil wherever they exist, using our air power and our support for partner forces on the ground. This strategy of taking out terrorists who threaten us, while supporting partners on the front lines, is one that we have successfully pursued in Yemen and Somalia for years.

What is true, and I think that we can't deny it, is that some of the same concerns about globalization, about technology, rapid social change that were reflected in Brexit, that's been reflected in some of the debates in Germany and France and other places, that those exist in the United States as well. My view is that over the long term, over the next 10, 15, 20 years, if we are able to address the legitimate economic concerns of those who feel left behind by globalization, then many of these tensions will be reduced. And we will see a world that is less divided.

When ignorant folks want to advertise their ignorance, you don't really have to do anything, you just let them talk.