With the recent commuter rail crash in Los Angeles, the FRA is looking at instituting Positive Train Control (PTC) on all commuter rails as soon as possible. Wabtec is currently the only company to have finished testing with the FRA and received approval for it's system. PTC is a failsafe device designed to stop trains if they run through red signals, etc. The Alaska RR is currently testing a similar system, but is having difficulty getting the setup to work properly. Combined with it's other products and services, Wabtec gives a nice little packet of diversity to shareholders.