This is a core principle of my presidency - if you threaten America, you will find no safe haven.

All of us take offense to anyone who reaps the rewards of living in America without taking on the responsibilities of living in America. And undocumented immigrants who desperately want to embrace those responsibilities see little option but to remain in the shadows, or risk their families being torn apart.

I think when you're governing, it will become increasingly apparent that if you were to just eliminate trade deals with Mexico, for example, well, you've got a global supply chain. The parts that are allowing auto plants that were about to shut down to now employ double shifts is because they're bringing in some of those parts to assemble out of Mexico. And so it's not as simple as it might have seemed.

So how do Latinos feel if there's a big investment just in the African American community, and they're looking around and saying, "We're poor as well. What kind of help are we getting?" Or Asian Americans who say, "Look, I'm a first-generation immigrant, and clearly I didn't have anything to do with what was taking place."

Ultimately, if you think about all the youth that everybody has mentioned here in Africa, if everybody is raising living standards to the point where everybody has got a car and everybody has got air conditioning, and everybody has got a big house, well, the planet will boil over - unless we find new ways of producing energy.

I do think that when you go into red states, they're - so-called red states - I think they're troubled with certain excesses with respect to the Patriot Act, but they're also concerned with making sure we're secure against terrorism.

It's hard to anticipate. I can tell you what I'm feeling right now is that I'm busier than I expected these last two weeks. A great deal of emotion around the people that I've worked with and the gratitude I feel for the sacrifices they've made on behalf of the American people, but also on behalf of me personally.