Germans are speeding toward a future of driverless trains. At least, that's what Deutsche Bahn chairman Rudiger Grube has been telling German newspapers. He says that by 2021, 2022, or 2023, the German railway company, Deutsche Bahn, will have the technology and infrastructure ready for autonomous trains. And, it's already preparing for it by working with the current human train conductors and their labor unions. According to Grube, the role of the train driver and train controller will merge together.