CNN Early Start With John Berman and Christine Romans February 25, 2015 10:10:00
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 ...