Exterior doors are not just simple passages, but the true protagonists of the comfort, safety and style of a home.

From smart locks with their own displays to a smart pet door that can sense when your pooch approaches, these are the smart home gadgets that caught our eye in Las Vegas this year.

Mr. Biden says he blocked the $14 billion takeover of U.S. Steel by Japan's Nippon Steel on the grounds the sale was a threat ...