welcome to our viewers in the united states and around the world. it is friday, i m christine romans. just moments ago you watched live ukraine s president volodymyr zelenskyy speaking via video link in berlin marking one year since russia s invasion. one year ago today russia invaded ukraine believing that they would overwhelm the country in short order. instead a straightforward russian victory has become less likely by the day and this morning instead of dwelling on ukraine s losses, president zelenskyy released an inspirational video urging people to face the enemy, resist and fight. he says we know 2023 will be the year of our victory. melissa bell is live this morning in kyiv. what is the mood there on what one would think is an unhappy milestone here? reporter: mixed really. on one hand ukrainians are bracing this morning for more russian strikes. that is what the head of ukraine s military intelligence has been warning about on this grim one year anniversary. but th
car number 23 derailed. reporter: the ntsb saying it was an overheated wheel bearing on a single rail car that eventually set off a sensor alerting the conductor to stop the train. we have no evidence that the crew did anything wrong. reporter: in all, 38 cars derailed including several transporting chemicals. surveillance video shows sparks and a bright light coming from underneath the train car in salem, ohio about 20 3450i8s f miles from east palestine. increased heating was detected, but it wasn t until a detector indicated the heating that the conductor hit the brakes to stop the train. we look at the temperature tre thresholds which indicate immediate action. again, spacing in temperature