Takata Corp., the manufacturer of allegedly faulty air bags in millions of American vehicles, is now involved in the largest product recall in the nation’s history.Bowing to pressure from U.S. regulators, Takata this week agreed to declare 33.8 million air bags defective. That action will double the number of cars and trucks in the massive recall.Takata entered into a consent order with the National Highway Traffic Safety Administration (NHTSA), which led to the expanded recall.“It’s simply unprecedented, …