Political Columnist Michael Gerson On Coping With `Insidious¿ Depression

Michael Gerson is a political columnist for the Washington Post and a regular contributor to the NewsHour. But this past weekend, he delivered a sermon at the Washington National Cathedral that focused on a more personal topic: his battle with depression. Gerson joins Judy Woodruff to discuss his experience with the "chronic insidious disease" and why he chose this moment to share it.