The threat has changed from simply worrying about foreigners coming here, to worrying about people in the United States, American citizens - raised here, born here, and who for whatever reason, have decided that they are going to become radicalized and take up arms against the nation in which they were born.

It's a sad indication of where Washington has come, where policy differences almost necessarily become questions of integrity. I came to Washington in the late '70s, and people had the ability in the past to have intense policy differences but didn't feel the need to question the other person's character.

Well, I think the American people have to understand that the Mexican government is committed, in a very substantial way, to eradicating the effect of the impact of the cartels on Mexico. We have - what are called vetted units down there. Units that have been vetted by our law enforcement people there, the people with whom we deal - primarily.

One of the things I learned is that you've got to deal with the underlying social problems if you want to have an impact on crime - that it's not a coincidence that you see the greatest amount of violent crime where you see the greatest amount of social dysfunction.

It is not death that a man should fear, but he should fear never beginning to live.

I was writing a scene where a guy was choking another guy to death. You can go online and type 'chokeholds' and watch scenes where martial artists choke each other out. You can hear what noises they make when they go unconscious, see how their bodies flop and everything. YouTube is amazing for the more detailed stuff.

Grief is so human, and it hits everyone at one point or another, at least, in their lives. If you love, you will grieve, and that's just given.

Grief seems at first to destroy not just all patterns, but also to destroy a belief that a pattern exists.