The oil shocks of the 1970s forced traumatic austerity on Americans. Some gas stations had miles-long lines; fuel was rationed based on whether a car’s license-plate number was even or odd; the White House Christmas tree went unlit ; daylight savings was imposed year-round. The fuel crisis that America’s war on Iran has unleashed is far larger—the biggest oil-supply shock in history, an estimated three times the disruption caused by the Arab oil embargo. Iran has effectively cut off the Strait