The Bad news: Just a few miles into the trip a wheel bearing became overheated and melted, letting a metal support drop down and grind on the rail, creating white hot molten metal droppings spewing down to the rail.
The Good news: A very alert crew noticed smoke about halfway back in the train and immediately stopped the train in compliance with the rules.
The Bad news: The train stopped with the hot wheel over a wooden bridge with creosote ties and trusses.
The crew tried to explain to higher-ups but were instructed not to move the train!
They were instructed "The Rules" prohibit moving the train when a part is defective!