I think it's hard to talk about the Muslim world and Christian world as blocks.

I think we've seen at least the beginnings of rather significant social and economic change in the Muslim world, which I think will in due course lead to more political change.

I've been to Egypt, Lebanon, Saudi Arabia, and Kuwait for brief visits at conferences, and they are very interesting countries.

I am doubtful that there will be any sort of real coherence of Muslim societies into a single political system run by an elected or non-elected group of leaders.

Global politics remains extremely complex and countries have different interests, which will also lead them to make what might seem as rather bizarre friends and allies.

Nationalism is a central ideology for people who are trying to establish their own states in which they can play a dominant role.

The core of the American set of beliefs has remained pretty constant.