New worker safety regulations meant to log how many hours truckers are on the road may have inadvertently exposed millions of U.S. 18-wheelers to hackers who could take control of entire fleets of vehicles, according to a new Colorado State University paper. Jake Jepson, co-author and graduate research assistant at Colorado State University, said it's important to create guard rails as the nation's transportation networks, power grids, water systems and other critical infrastructure move online. ...