Video of the Week: A brief history of lead

The water crisis in Flint, Michigan shines a new light on the dangers of lead poisoning. But people have been mining lead, making everyday objects from the metal, and have been aware of its dangers for thousands of years. 

In this video, we take a step back in time to look at the history of lead — how it was used, how it was banned in certain items, efforts to keep the industry strong, and how it is still used today.