With a new $50 million contract in hand to help the Army make its vehicles lighter, the president of aluminum giant Alcoa's defense business says the service is facing some key decisions for the way ahead. At issue is the fundamental question of how to best inject the design philosophy of monolithic structures into Army vehicles, Eric Roegner said in an interview with Inside the Army . In cooperation with BAE Systems and Alcoa, the service had a single-piece aluminum...