If you work for a railroad, do you use the trains without any people? just an engineer? an engineer and?

We have all two man crews on the UPRR.I work out of Texas.I hope they never go to a one man crew.I think when they get positive train control it will be much tougher for the unions to fight off one man crews though.I'm glad i'm nearing the end of my railroad career as there have been too many changes(not all for the good).It used to be a fun job once upon a time.