Moreover, as America becomes an increasingly multi-cultural society, it may find it more difficult to fashion a consensus on foreign policy issues, except in the circumstance of a truly massive and widely perceived direct external threat.

I think the US has the right to have its own national security policy. I think most Americans would agree with that. And therefore clarity on this issue is important and especially if we commit ourselves, explicitly and bindingly, to Israel's security.

Without Ukraine, Russia's imperial aspirations are essentially nostalgia, but it's not a real policy.

Not to mention the fact that of course terrorists hate freedom. I think they do hate. But believe me, I don't think they sit there abstractly hating freedom.

I was confident about America and the idea that in America people can become American without masking their ethnic identity.

We look a little bit disorderly, indecisive, leaderless. That's a real problem, and that's a problem that concerns me particularly on foreign affairs. The presidency, not just President Obama, but the presidency in recent years has lost some of the terrain that they used to dominate in the making of foreign policy. I think President Obama has to make a serious effort to regain it because he lost some of it himself.

No matter how deeply disturbing the thought of using the environment to manipulate behavior for national advantages to some, the technology permitting such use will very probably develop within the next few decades.