I think we've made the collection haystack so big, no one's ever getting through the haystack to find the needle. What we really need to do is isolate the haystack into a group of suspicious people and spend enormous resources looking at suspicious people, people who we have probable cause.

For most of our history, no one dared to tell Americans, you don't build that.

We still need to secure our southern border. The other thing I would say is we need to secure who visits us in the country.

Right now in the insurance markets, we have sort of a disaster unfolding, a downward spiral, adverse selection, premiums in the individual market going through the roof. People can't afford insurance and insurance companies are losing hundreds of millions of dollars. If you repeal part of Obamacare to get rid of the individual mandate but keep some of the ideas, that people can still buy insurance after they're sick, the situation gets extraordinarily worse. And so what we're seeing now could be tenfold greater if you only repeal part of Obamacare.

The problem is that in our country, they make it almost impossible for politicians to win anything. In England it's easier to win a libel suit.

When I asked the president [Barack Obama], can you kill an American on American soil, it should have been an easy answer. It's an easy question. It should have been a resounding and unequivocal no. The president's response, he hasn't killed anyone yet.

Any time we give people the ability to use force, we have to be very careful. It's sort of like the people who spy on us - you've got to watch the watchers.