U.S. Energy Department

Physicist Ernest Moniz has been sworn in as the nation's new energy secretary.       The 68-year-old Fall River native and Massachusetts Institute of Technology professor took the oath of office Tuesday at the Energy Department. He replaces Steven Chu, who served as energy secretary in President Barack Obama's first term...

President Barack Obama has nominated two people with strong ties to Massachusetts to run the Energy Department and Environmental Protection Agency. Obama on Monday promoted current EPA official Gina McCarthy to lead the agency and MIT scientist Ernest Moniz to run the Energy Department. ...