The document discusses the U.S. current account deficit and perspectives from various economists on its sustainability. It provides details on how the current account is calculated and its components. The deficit is seen as having both positive and negative impacts in the short and long run. Economists estimate the dollar would need to depreciate significantly, between 10-35%, for the deficit to be eliminated or reduced. The document also examines the largest trade deficit partner countries and steps the U.S. could take to control the situation.