In the last five years, U.S. Steel has paid more than $10 million in penalties for violations of the Clean Air Act at ...

Brian Doyle remembers the explosion that hurled him to the coke plant’s floor — but little else from that day. It was a ...

Rich Lattanzi knows all about safety in U.S. Steel’s Mon Valley facilities. At age 26, decades before he was elected in 2010 ...

U.S. Steel said its investigation indicates the explosion happened when workers were flushing a gas valve in preparation for ...