here. why? well, it may or may not have made a difference here. so what happened, when we see that video with the fire under the train, the train tracks for most major rail lines are smart tracks and on the track are defect detectors and they have infrared sensors and they detect if a wheel or axel is overheating, that s called a hot [ inaudible ] it sends an automated message, voice message to the train engineer and you have to stop if you have a hot box. so if those sensors were working as they should have been, and the engineer got that warning, then the engineer should have been able to stop. now, this braking system, this electronic controlled pneumatic braking system, nickname ecp, would have been required for all trains carrying high hazmat, highly flammable materials, however, it was limited to trains over 70 cars going over 30 miles an hour and carrying