As the Israeli-Palestinian conflict enters its darkest chapter in decades, both sides are evoking the same foundational moment in their past: the events of 1948. David K. Shipler, a former Jerusalem bureau chief for The New York Times and the author of a Pulitzer Prize-winning book about the conflict, discusses the meaning and reality of what happened that year. Guest: David K. Shipler, author of “Arab and Jew: Wounded Spirits in a Promised Land.”