The pandemic has upended the travel industry and changed the way we explore the world. What will smart travelers need to know once we can pack our bags again? Andrea Sachs, the Washington Post’s travel writer; Pauline Frommer, editorial director of Frommer’s Guidebooks; and Karin King, deputy assistant secretary of state for overseas citizen services share the best advice and resources for staying safe, healthy, and well-informed so you can relax on your long-overdue trip.