a in this. there so many questions and an impact on shift workers in terms of body clocks and how important that is to consider when you are making changes. >> another reason why if you have a system end whether it slows you down. >> it's insane. >> or whether it's error of the person. >> some trains have the alarm when is they can't get a reaction from the engineer. >> it has been available for more than a few years. >> it seems kind of obvious. >> i had one of those. >> okay. let's start with detroit. the motor city has gone bust. they gave the green light to file for chapter 9 bankruptcy protection ruling that it is unable to pay $18 billion in debts. there is a march 1st deadline to be filed. the emergency manager is expected to have a 50 draft next