I found 'The Twin' sitting on a coffee table at a writers' colony in 2009. It carried praise from J.M. Coetzee. That seemed ample justification for using it to avoid my own writing. I finished it - weeping - a day later, and I've been puzzling over its powerful hold on me ever since.

I think in the wake of 9/11, like a lot of Americans, you know, we were all very traumatized by the attacks, traumatized in a totally different way by some of what happened afterward in response. And I think there have been these questions hovering in the past decade of, what kind of country are we? Who are we?

So the premise of 'The Submission' is that there's an anonymous competition to design a 9/11 memorial and it's won by an American Muslim, an architect born and raised in Virginia, and his name is Mohammad Khan.

And as journalists we look for differences - differences between countries, cultures, classes, and communities. We're very sensitized to difference, but it's much harder to write about similarities across countries, cultures, classes, and communities.

Jealousy clings to love's underside like bats to a bridge.

History is the history of human behavior, and human behavior is the raw material of fiction. Most people recognize that novelists do research to get the facts right - how a glove factory works, for example, or how courtesans in imperial Japan dressed.

I had been a reporter for 15 years when I set out to write my first novel. I knew how to research an article or profile a subject - skills that I assumed would be useless when it came to fiction. It was from my imagination that the characters in my story would emerge.