Delta Air Lines plans to replace power units on more than 300 Airbus jets following reports that toxic fumes have contaminated the air in cabins, posing health and safety risks to passengers and crew, according to a recent Wall Street Journal investigation. Keith Mackey, a retired airline captain and aviation accident and reconstruction consultant, tells "Morning in America" the issue has persisted for roughly two decades and is linked to a problem with the Airbus A320 aircraft. | NewsNation