Simon Winchester & Mary Roach

Where do you expect you'll wind up after you die? Once they've put your body in the ground, or rendered it to the dust from whence you came, what then? Mary Roach tries to find out what modern-day science knows or thinks it knows about the afterlife in her new book Spook. We'll talk with her in a few minutes. But first, writer Simon Winchester, whose academic training was in geology, takes a fresh look at the great 1906 San Francisco earthquake, and figures out how that disaster figured into a year that was full of natural diasters, in his book A Crack in the Edge of the World.