Health

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May 30

How might cellphone signals cause cancer?

The release of a study Friday linking cancer in rats to the type of radiation emitted by cell phones presents some of the strongest implications in more than two decades of research that higher doses of such signals could be…

Friday on the NewsHour, Barack Obama becomes the first sitting U.S. president to visit Hiroshima and pays tribute to the bombing victims. Also: Inside Obama’s nuclear legacy, a new film recognizes American POWs killed at Hiroshima, the fight for food…