One of my most favorite things to see when we travel across the vast prairies of this country is the mile-long freight trains that often run alongside the highway. I start out trying to count the number of cars but soon give up because I simply can’t keep up.  But if I’m really lucky I’ll hear that long drone – somewhat lonely – call of a train whistle.  There’s just something about it that tugs at my soul; almost makes me want to bum a ride in an empty freight car headed for parts unknown.  Almost.