All Things Considered for April 6, 2016 Hear the All Things Considered program for April 6, 2016

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Steven Jones, plant manager at EnerSys in Warrensburg, Mo., stands in the "transition room" where there is no lead before stepping onto the factory floor. EnerSys manufactures lead batteries. Frank Morris/KCUR hide caption

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Frank Morris/KCUR

Health

Before It Was Dangerous, Lead Was The Miracle Metal That We Loved

Lead, the "useful metal," was the pride of the Romans. For the last 5,000 years, it was used in products ranging from water pipes and makeup to wine — until we discovered how poisonous it is.

This computer-simulated image shows a supermassive black hole at the core of a galaxy. The cosmic monster's powerful gravity distorts space around it like the mirror in a fun house, smearing the light from nearby stars. NASA/ESA/D. Coe, J. Anderson and R. van der Marel (Space Telescope Science Institute) hide caption

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NASA/ESA/D. Coe, J. Anderson and R. van der Marel (Space Telescope Science Institute)

Supermassive Black Holes May Be More Common Than Anyone Imagined

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Merle Haggard, shown performing in 1985, was a country music fixture for 50 years. He died Wednesday, on his 79th birthday. Ebet Roberts/Redferns/Getty Images hide caption

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Ebet Roberts/Redferns/Getty Images

Country Legend Merle Haggard Dies At 79

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A "new" Rembrandt portrait is actually the creation of a 3-D printer — and a statistical analysis of 346 paintings by the Dutch master. Robert Harrison/J. Walter Thompson Amsterdam hide caption

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Robert Harrison/J. Walter Thompson Amsterdam

A 'New' Rembrandt: From The Frontiers Of AI And Not The Artist's Atelier

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Marvel's Black Panther by writer Ta-Nehisi Coates and artist Brian Stelfreeze. Marvel hide caption

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Marvel

Ta-Nehisi Coates Hopes 'Black Panther' Will Be Some Kid's 'Spider-Man'

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A judge watches contestants sleep during the Siesta Championship in Madrid in 2010. Prime Minster Mariano Rajoy said it's time to end the afternoon break. Many Spaniards call it an outdated stereotype and have been annoyed with the way the foreign media has reported it. Paul White/AP hide caption

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Paul White/AP

Spain Debates: Is It Time To Scrap The Siesta?

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Steven Jones, plant manager at EnerSys in Warrensburg, Mo., stands in the "transition room" where there is no lead before stepping onto the factory floor. EnerSys manufactures lead batteries. Frank Morris/KCUR hide caption

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Frank Morris/KCUR

Before It Was Dangerous, Lead Was The Miracle Metal That We Loved

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Refugees walk around Kladesholmen, Sweden, on Feb. 10. Last year, Sweden received more than 160,000 asylum applications, more than any European country proportionate to its population. David Ramos/Getty Images hide caption

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David Ramos/Getty Images

As Sweden Absorbs Refugees, Some Warn The Welcome Won't Last

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