Our guest is the journalist Sarah Smarsh, whose book, "Heartland: A Memoir of Working Hard and Being Broke in the Richest Country on Earth," is now out in paperback. It's a far-reaching account of her coming of age in smalltown Kansas that sharply explores matters of poverty, class, family, income inequality, Midwestern values, personal ambition, faith, womanhood, and other key social and economic concerns. A bestselling and widely acclaimed American autobiography that feels especially timely,