You can read it here:
The reporter, Maya Ando, contacted me originally by email, and ended up doing the “interview” by email as well. While the spontaneity and give-and-take of an in-person interview is lost, it’s a good journalist technique. It reduces the ever-present likelihood of errors and misquoting. Accuracy, not friendly banter, should be the journalist’s goal, after all.
I wish email interviews had been possible back in the Stone Age when I was a journalist for Forbes. Virtually no one had email. I remember spending days, even as a senior editor, trying to track down sources by phone or fax to check their facts.