When I'm writing about complicated subjects, it usually involves a world. It could be the world of Scientology or the world of Al Qaeda, or the world of counter-terrorism.I look for emblematic beasts of burden - what I call "donkeys" - who can carry the reader through this world. They serve a different purpose. Donkeys are not especially interesting or likeable, but they are serviceable. They will take you into this world. The distinction I'm trying to make is: It's not about them. It's about the world.

I don't want to constantly be writing about terrorism and strife.

Having written Camp David as a drama, I could see the drama maybe a little more clearly when I wrote the book.

From the very beginning, when you go into Scientology your world narrows down very quickly.

I think we give Jimmy Carter too much credit to think he knew what was going to happen when he used the word "apartheid." It's provocative, but it was like a nuclear bomb in Israel. And yet that word is used all the time in the Israeli press. There's a double standard there. He probably picked it up in Israel, as it's commonly discussed. I'd be a little surprised if he understood how it was going to be used against him. He doesn't have a highly developed emotional detector. As a politician, that was a weakness.

Hubbard set up the Church of Scientology in Hollywood in 1954 for a reason. He understood that celebrity was increasingly a feature of American public life, and celebrities themselves were going to be worshipped as minor deities were in the ancient world. The idea was: if you could get them, think how many people would follow.

When I was trained as a journalist, as a race-relations reporter in Nashville covering the end of the civil-rights movement, we were strictly forbidden to use the first-person pronoun. There was kind of an electric charge around it. To come out from hiding and use the word 'I' carried a lot of fright for me.