California regulators have quckly begun steps to ban the use of cell phones by rail workers after it was revealed that the engineer of a Metrolink train that crashed last week had been sending text message while on duty. According to an atricle in the LA Times, the California Public Utilities Commission plan calls for an immediate ban on wireless devices by on-duty rail engineers, conductors and brakemen, except during emergencies. Separate railway crashes and incidents in Texas and California have been linked to cell phone use.