There’s something big happening in Washington, D.C. tomorrow. It’s not a rally. It’s not a campaign stop. And it’s not just another political spectacle. It’s something far more important – and ...

Tiny rare-earth magnets are used for building phones, electric cars, and submarines. Nearly all rare earths are mined in China, but one U.S. company is trying to change that. WSJ’s Jon Emont spoke wit ...