Shares of U.S. Steel are hitting a 52-week high after President Donald Trump ordered a new national security review of Nippon Steel’s proposed bid to buy U.S. Steel for nearly $15 billion ...

WEST MIFFLIN, Pennsylvania — The steep climb in the truck up from the Monongahela River to the entrance of the Mon Valley Works Irvin Plant is a picturesque reminder of just how much earth had to be ...