we now know that this gigantic oil train explosion was caused by a defect on the tracks. specifically a broken rail that had been detected twice by a contractor hired by the rail company but even though it was detected twice it was never fixed. and then it caused this terrible accident in this terrible xbloegs. we know this thanks to an investigation by the federal railroad administration. joining us now is sarah fineberg, the acting administrator. great to you have here. thanks for being here. >> thank you for having me. good to see you. >> let me ask you first about the fine in this case. is it true that company in charge of the tracks and the contractor in charge of checking them, they only got fined $25,000 for this disaster? >> that's right. $25,000 each. that's actually the limit of our statutory authority for failure to identify and mitigate a defect like this. >> and as you're taking these new steps to try to improve track safety, you're taking multiple steps to make oil trains a safer thing, specifically looking at the