We've known about the health harms of lead exposure for more than 1,000 years. But many people, including children, are still exposed to lead through various sources including paint, water and soil. In this episode, Dan Kass, Senior Vice President of Environmental, Climate and Urban Health at Vital Strategies joins us to discuss this pervasive public health problem, what governments can do to monitor lead exposure and what you can do to protect yourself from lead poisoning.