CNN CNN Newsroom With Carol Costello May 18, 2015 14:30:00
>> i'm told by someone who swears that's the case and is in a position to know prior to the deadly run-up he made a southbound run from new york to washington and i'm told that in the course of that trip they had something called a cabin signal failure. who would know what that is? what a cabin signal failure means when they are barreling down the east coast at 100 miles an hour and there are track signals flashing by, there's hundreds of them telling you if it's safe to proceed, slow for a switch another train ahead, things like that there's a display in front of you that's your backup. if yo...