The Transportation secretary says the effort is about safety, but some rail experts and the wind industry say there's little ...

The U.S. Department of Transportation is investigating three blue states’ possible involvement in an Aug. 12 fatal car crash ...

Transportation Secretary Sean Duffy detailed his spat with Elon Musk over firing air traffic controllers during an appearance ...

Transportation Secretary Sean Duffy accused his predecessor of lowering the testing standards to become an air traffic ...

Transportation Secretary Sean Duffy opened up about his past dispute with tech mogul Elon Musk over the guru’s push to slash ...

DOT officials launched a new million-dollar idea challenge targeted at the future of American transportation and ...

Acting NASA administrator Sean Duffy told Fox News host Jimmy Failla he had not yet been given "the alien briefing," despite ...

Transportation Secretary Sean Duffy stated there are no current plans to privatize the FAA or air traffic controllers, ...

U.S. Transportation Secretary and acting NASA Administrator Sean Duffy joined President Donald J. Trump in signing of the Executive Order.

NASA is fast-tracking plans to deploy a nuclear reactor on the lunar surface by 2030 as a strategic imperative to prevent ...

Sean Duffy, acting administrator of NASA, speaks with CBS News' Mark Strassmann about the new space race with China.