Phil Zuckerman is a professor of sociology and secular studies – yes, secular studies – at Pitzer College in Claremont, California, where he lives with his wife and three children. He is the author of several books about atheism, including Society Without God and Faith No More: Why People Reject Religion. Next week, he'll be releasing a book called Living the Secular Life.

We spoke with Phil about whether the rise of the "Unaffiliated" has hit its peak, why more atheists have come out of the closet over the past decade, and why that demographic shift is good for America.