The fatal explosion last week at U.S. Steel's Pittsburgh-area coal-processing plant has revived debate about its future just ...

Pittsburgh lawyer John Gismondi has seen it all before. He represented the family of Nicholas Revetta, killed in a 2009 ...

The air monitor generates a beam of infrared light, shoots it down to that mirror, which causes it to bounce back.

The fatal explosion last week at U.S. Steel’s Pittsburgh-area coal-processing plant has revived debate about its future just as the iconic American company was emerging from a long p ...

A deadly explosion at U.S. Steel’s Clairton Coke Works near Pittsburgh has killed two workers and injured ten others after a ...