tried to focus on a particular aspect of this historical moment: the failure of mourning. This is something I haven't seen a great deal of in the writing around this disaster. And my view is that you write about disaster by writing around it, by writing allusively.

You know that this vignette and that vignette belong side by side, you know that a certain turn of phrase you've been saving will probably work best within a given section of the narrative. As in a jazz performance, writing lives or dies by what's produced in that moment. But that moment is attended by long preparation.

Oh, I love labels, as long as they are numerous. I'm an American writer. I'm a Nigerian writer. I'm a Nigerian American writer. I'm an African writer. I'm a Yoruba writer. I'm an African American writer. I'm a writer who's been strongly influenced by European precedents. I'm a writer who feels very close to literary practice in India - which I go to quite often - and to writers over there.

There is an expectation that we can talk about sins but no one must be identified as a sinner.

What's interesting about Twitter is the unmediatedness of it, the directness of it. I'm on a train somewhere in New York and I send out a tweet. Somebody sitting at dinner in Bombay checks their phone and they see it.

It's an Obama book, certainly. I was delighted, and astonished, to hear recently that he was reading it. It's a book about a new kind of American reality, one that takes diversity for granted. It doesn't celebrate diversity, actually, it just says: this is how we live now.

One of the difficulties of photography is that it is much better at being explicit than at being reticent.