This really pisses me off.

While many people suspect members from a certain union, it could also be tweekers wanting to get metal for recycling and support their meth habits. (Remember what happened to CSX tracks not too long ago).
As a railfan, my biggest fear will be the crackdown on anyone close to BNSF, UP, P&W tracks.

. As railfans, we share a responsibility (IMHO) to help safeguard the railroads, and report any suspicious activity. I recently joined BNSF's United for Rail Security group. If I'm ever stopped or questioned, I can at least present that to the authorties and hopefully demonstrate that I am all for the welfare of the railroad and it's property.
If it is the union members who are behind these actions, it is blatantly WRONG to be taking their frustrations out on a third party, that has NOTHING to do with the situation in Longview. Those train folk are simply doing their jobs.
I hope that law enforcement will be able to find out who's responsible, apprehend them, and that the district attorney will throw the book at the scoundrals. In the meantime, let's all do what we can to be extra eyes and ears for the folks who help us enjoy our hobby of railfanning.