Just drove past the southern tip of the yard leading to the docks here in Seattle and saw an older Santa Fe GP-unit in the yellow/blue warbonnet scheme hooked to a BNSF newer EMD?? unit, hooked to a Norfolk Southern SD?? unit. Sorry I didn't catch each type of diesel - I'm still learning to recognize them quickly by sight - but I didn't know that BNSF had any blue/yellow units left unpainted...and I thought it strange that a NS would find be found way up in the pacific northwest. On the side of the older Santa Fe unit was written "RADIO CONTROLLED EQUIPT". Does that mean that the diesel can be run without anyone in the cab?