US seeks prison sentence for VW engineer in diesel scandal

U.S. prosecutors are seeking a three-year prison sentence for a Volkswagen engineer who had a key role in the company's diesel emissions scandal.Robert Liang will be sentenced Friday in federal court in Detroit. He is one of two VW employees to plead guilty, although others charged in the case are in Germany and out of reach.Prosecutors say Liang was aware that VW used software to cheat U.S. emission rules on nearly 600,000 diesel vehicles. His lawyer says he's not "greedy or immoral" but follow