The battle over rare earth metals

Some of the smallest things in the world may have some of the biggest importance in trade with China: Rare earth minerals. They're tiny elements that help power everything from your phone to the future of electric cars. The U.S. used to be a leader in their mining, but now China controls nearly their entire global production. And the U.S. is getting nervous. Brian Sullivan takes a closer look at this crucial industry, and why it matters so much.
Wed, Oct 16 201911:03 AM EST