may have prevented a bigger tragedy. officials say some of the metrolink cars were equipped with what s called collision energy management technology. something installed five years ago following a deadly rail crash. it just keeps them from crumping inward to protect the people inside. another round of brutal weather bears down on the south. the govrnlernors of alabama and georgia declaring a state of emergency. atlanta has already canceled classes for several school districts today. record-breaking snow. in tennessee, residents are without power in six counties. the state has reported dozens of deaths in the past week. in north carolina snow caused problems for commuters. part of i-85 in rowan county closed after that pickup truck overturned. several other vehicles crashed nearby. officials say the driver of that pickup was not injured. so how long before things return to relative normal for
sky. when we see the video it s remarkable that only 28 people were injured. when we re looking at what you re just showing. the condition of the cars on their side that there were only 28 people injured. at this point we know people are fighting for their lives but no one has died. what is it that kept passengers safe when you look at a fire ball like that? reporter: unfortunately, it s something this community has learned from experience. there s been terrible derailments in the past ten years or so. there s a new technology being used. it s collision energy management technology. that prevents the train cars from crumpling. more people will live. because the cars remained in tact and tipped over many many more survivors. this could have been a lot