Functioning Lights News Today

>> reporter: a couple of notes here, andrea, to begin with you may have heard senator flake say he had been told -- actually stop right there. take a look at the shot. there is a crossing light there. the question is if theres a crossing arm. there are flashing lights. among the priorities for the investigation will be were they working, was there an arm, a railroad arm that was supposed to come down, did it come down, did this trash truck try to beat the train or was it stuck on the tracks? but...