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Closing arguments wrap in Hunter Biden's trial

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PBS News Hour

The hazards of wildfire smoke, even hundreds of miles away

Smoke from wildfires hundreds of miles away is still a health threat, contributing to nearly 16,000 deaths a year, according to a recent National Bureau of Economic Research analysis. Laura Kate Bender, who leads the Healthy Air campaign for the American Lung Association, joins John Yang to discuss what makes wildfire smoke so hazardous and how people can protect themselves.
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