With Labor negotiations unsettled with two of twelve rail unions, it appears that that nation's Class I rail carriers are headed for a service shutdown unless a compromise is met. I'm not sure of the details with each carrier, but NS will not accept intermodal traffic beginning tomorrow and automotive traffic will not be accepted beginning Wednesday. Hazmat loads are affected too, as the road doesn't want loads that present a risk sitting in yards. Hopefully things will be worked out before week's end. A stoppage would most certainly have rapid consequences for already stretched supply chains. I don't want to spawn a debate, but rather to just let the railfans amongst us know.