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Darius Rafieyan

Darius Rafieyan joined NPR in 2017 as the founding producer of The Indicator from Planet Money. He has produced stories about infectious disease outbreaks, the world's greatest air salesman, and the economics of Tinder.

Before joining NPR, he was a producer at Bloomberg and Al Jazeera English. Rafieyan also reported from Iran for The Guardian's Tehran Bureau blog. He is a graduate of New York University's Gallatin School of Individualized Study.

New York City is grappling with a measles outbreak. There have been 283 reports of measles in Brooklyn alone, compared to more than 500 nationwide, according to the Centers for Disease Control and Prevention. Mayor Bill de Blasio declared a public health emergency last week, requiring people living in parts of Brooklyn to get vaccinated.

Measles can cause serious long-term harm, to individuals and to the economy. On today's show, we examine how high the costs can go, and where they are incurred.

Global demand for hazelnuts is on the rise, but the industry has a problem. More than 70% of the world's hazelnuts come from just one place: Turkey. And that leaves producers and Nutella lovers everywhere vulnerable.

But lucky for them one scientist in New Jersey has spent the last 23 years on a global quest to reinvent the hazelnut. And now his dream may finally be coming to fruition.

Today on The Indicator: how one man's lifelong obsession could end up revolutionizing an entire industry.