i rise in support of the nominations of christopher a. hart to be chairman and tho dinh-zarr to be board member of the national transportation safety board. the national transportation safety board helps keep all of us safe. and when a terrible crash happens, we watch on television or read about the crash and wonder what happened, but it's the national transportation safety board that steps in during those first moments. they get in, preserve evidence to sift through the debris and then to figure out what went wrong. and they play a difficult role. they must put aside all differences between jurisdictions, politics and partisanship just to get the job done. and in the last month alone the board has launched investigations into a ship collision in texas a plane veering off the run way in new york two terrible and fatal train crashes in new york and california and a tragic incident right here in d.c. where smoke filled one of the metro tunnels and resulted in a passenger dying. they're also helping with an oil train derailment in west virginia a