Kentucky Gov. Andy Beshear declared a state of emergency Wednesday after a train derailed in Livingston and spilled chemicals that caught on fire, sending plumes of smoke into the air. At least 16 cars of a southbound CSX train were involved in the derailment which happened at about 2:23 p.m. just north of the tiny town of 400 residents in Rockcastle County, CSX said. Two of those train cars were carrying molten sulfur which leaked out during the derailment and ignited, according to the company. When molten sulfur burns, it often releases sulfur dioxide, which can be toxic. Residents of...