We speak with James Larkin, the head of a project in South Africa that's experimenting with using radiation to prevent rhino poaching. They sedate the animals and inject radiation into their horns.
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Henry Larson
John Ketchum
Juana Summers
Juana Summers is a co-host of NPR's All Things Considered, alongside Ailsa Chang, Ari Shapiro and Mary Louise Kelly. She joined All Things Considered in June 2022.